6.1 Thresholds in Ecological Systems:

The following references are intended to highlight the concept of thresholds, and the implications this may hold for Marine Systems: They delineate problems of the uncertainty of thresholds and the implications when there is interference in ecosystem integrity by Global Climate change and poorly managed fisheries and habitat conservation in marine areas.

1. This reference on “Thresholds in Ecological and Social–Ecological Systems: a Developing Database explains some research into this problem:

http://www.ecologyandsociety.org/vol9/iss2/art3/

“Increasing interest in regime shifts in ecological and linked social–ecological systems (SESs) has placed a strong focus on the thresholds of change. However, research into this topic has been hampered by a lack of empirical data. This paper describes a developing database established to address this need. The database is freely available and comprises a set of summarized published examples and a searchable bibliographic database of publications on the topic. Thresholds in the database are characterized in terms of a standardized set of 24 descriptors, including the variables along which they occur, the variables that change, and the factors that have driven the change. Readers are encouraged to contribute new examples. Examples range from conceptual models to empirical evidence. The former predominate in the literature and, although they make valuable contributions and will continue to be included, the intention is build up the number of examples based on data. Examples are presented in terms of whether the threshold occurs in the ecological system, the social system, or both, and the direction of interactions between systems. The paper concludes with some initial observations on thresholds based on the examples included so far, and poses some questions for future research. Research on a typology of thresholds is a priority topic in the emerging area of “sustainability science” and it requires a rich database of empirical data.”

2. Confronting he coral reef crisis:http://www.nature.com/nature/journal/v429/n6994/full/nature02691.html

The worldwide decline of coral reefs calls for an urgent reassessment of current management practices. Confronting large-scale crises requires a major scaling-up of management efforts based on an improved understanding of the ecological processes that underlie reef resilience. Managing for improved resilience, incorporating the role of human activity in shaping ecosystems, provides a basis for coping with uncertainty, future changes and ecological surprises. Here we review the ecological roles of critical functional groups (for both corals and reef fishes) that are fundamental to understanding resilience and avoiding phase shifts from coral dominance to less desirable, degraded ecosystems. We identify striking biogeographic differences in the species richness and composition of functional groups, which highlight the vulnerability of Caribbean reef ecosystems. These findings have profound implications for restoration of degraded reefs, management of fisheries, and the focus on marine protected areas and biodiversity hotspots as priorities for conservation.

3.Ecological Thresholds in Aquatic Ecosystems: The Role of Climate Change, Anthropogenic Disturbance, and Invasive Species Progress Review Workshop

http://archive.epa.gov/ncer/publications/web/html/06_07_07_ecological.html

4. A Balancing Act
A leading UMaine marine scientist says better management is needed to save the world’s oceans that are drastically out of sync http://umainetoday.umaine.edu/issues/v6i4/act.html

Pointing to a growing list of health threats to the world’s oceans, Steneck describes a common pattern of slow, incremental overload and sudden collapse, suggesting that the Blue Planet’s ability to absorb the insults of human misuse have clear limits. The notion of ecological thresholds is at the core of Steneck’s assessment of the seas. As pressure on the marine environment continues to grow, these thresholds are being met — and surpassed.
A classic example of the threshold phenomenon can be found in the sad tale of the green sea urchin. Prolific and plentiful across the Gulf of Maine, urchins spent decades quietly munching at the Atlantic’s undersea salad bar, unaware of the socioeconomic tsunami on the horizon.
As urchin populations in other parts of the world were rapidly depleted by overfishing through the 1970s and ’80s, a seemingly insatiable Asian market turned its hungry eyes toward Maine, creating a boom-and-bust fishery that crashed a multimillion urchin population in less than two decades.

6.2 Global Climate change means Ocean change

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6.0 A Choice of Futures:

One can consider from clearly presented alternatives a choice of marine futures on many issues regarding marine policy decisions.

Integrated management of marine systems—that is, coordinated management of all alternative uses of the ocean is probably the only way we are going to have any chance of securing a sustainable fishery. Here the decisions are political. Bring the issues up at all levels of government and if necessary get involved to help make changes. See 3.2 Integration
From Marine Fisheries Systems
http://www.millenniumassessment.org/documents/document.287.aspx.pdf
Although the emphasis in recent years has been on unsustainable fishing practices, fisheries represent only one of many human
influences on marine ecosystems. In coastal marine systems in par- ticular, coastal development—with concomitant problems of local pollution and habitat destruction—is very important. (See Chapter 19.) Non-fisheries human influences such as marine debris and oil slicks are also important on the high seas. As a result, as de- scribed earlier, several nations are attempting to develop legislation and policies to facilitate integrated management of marine systems—that is, coordinated management of all alternative uses of the ocean. Such uses include harvesting marine species for food and other purposes, aquaculture, research, oil and gas exploration, ocean mining, dredging, ocean dumping, energy generation, eco-tourism, marine transportation, and defense. To date, it has proved difficult to integrate the management of all these activities because the authorities regulating these activities are usually inde- pendent of one another (Sissenwine and Mace 2003).
We need to be involved in the choice of options for human sewage and industrial effluent disposal in coastal waters.
We must deal with agricultural runoff head on. People have to make a choice.
The implications for uncontrolled population growth of our communities, making the marine systems unsustainable is an issue of importance needing political decisions.
The pros and cons of sustainable and non-sustainable aquaculture practises should be another area where the public is asked to make a commitment.
The regulation of harvesting and the decision to create reserves and marine protected areas are other aspects that when people are presented with the facts, they should be asked to commit to one alternative or the other.
Our goal should be to make an educated and aware public who can participate in solving the problems of humans living sustainably in the marine area.
The Climate change choice of futures. Implications are mentioned in this reference and the urgency to act now is encouraged

6.1 Threshholds in Systems.

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4.3 Ocean Pollutants

4.3 Ocean Pollutants:

A major problem with maintaining sustainable oceans is the global contaminations from atmospheric and direct point source pollution.

Probably the greatest single issue that needs to be dealt with here is that of the possibility of opening up the Coastal areas for offshore drilling. Our ability to debate this is a good test of how serious we are about thinking about marine resource sustainability for the future.

As theSierra Club puts it:
http://www.sierraclub.ca/bc/programs/marine/issue.shtml?x=550&als[URL_ITEM]=24ad1fd0ec90a1265449091eeba17b55

  • “The ecological risks are too great.
    One oil spill like the 1989 Exxon Valdez spill in Alaska would spell disaster for B.C.’s marine life. Exploration techniques like seismic testing have serious ecological consequences.
  •  Current environmental regulations are inadequate.
    Our provincial environmental regulations have been gutted. Federal legislation such as the Species at Risk Act is toothless. We lack a regime that can protect the natural environment.
  • B.C. needs to look beyond fossil fuel energy sources.
    Developing B.C.’s offshore oil and gas will mean committing to an energy source that has proven to be unsustainable. Canada has to reduce its greenhouse gas emissions to meet Kyoto targets. We need to invest in alternative energy sources now.”

OTHER CHEMICAL CONTAMINANTS harmful in the Marine Environment

Below are portrayed the records of some countries with good news stories. Find as many of these as possible to show that it is possible to do things right. Also see the section on types of demos and take aways for related ideas.
Reference: From:” WATER” http://www.unep.org/geo/geo4/report/04_Water.pdf

“Persistent organic pollutants (POPs) are synthetic organic chemicals that have wide-ranging human and environmental impacts (see Chapters 2, 3 and 6). In the late 1970s, studies of the North American Great Lakes highlighted the existence of older, obsolete chlorinated pesticides (so-called legacy chemicals) in sediments and fish (PLUARG 1978). As regulations curtailing their use were implemented, chemical levels have declined in some water systems since the early 1980s (see Chapter 6) (see Box 6.28). Similar declines have since been observed in China and the Russian Federation (see Figure 4.10). The estimated production of hazardous organic chemical-based pollutants in the United States by industry alone is more than 36 billion kilogrammes/ year, with about 90 per cent of these chemicals not being disposed of in an environmentally responsible manner (WWDR 2006). The chemicals in pesticides can also contaminate drinking water through agricultural run-off. There is growing concern about the potential impacts on aquatic ecosystems of personal-care products and pharmaceuticals such as birth-control residues, painkillers and antibiotics. Little is known about their long-term impacts on human or ecosystem health, although some may be endocrine disruptors. Some heavy metals in water and sediments accumulate in the tissues of humans and other organisms. Arsenic, mercury and lead in drinking water, fish and some crops consumed by humans have caused increased rates of chronic diseases. Marine monitoring conducted since the early 1990s in Europe indicates decreasing cadmium, mercury and lead concentrations in mussels and fish from both the northeast Atlantic Ocean and Mediterranean Sea. Most North Sea states achieved the 70 per cent reduction target for these metals, except for copper, and tributyltin (EEA 2003). Although occurring in some inland locations, such as the Upper Amazon, oil pollution remains primarily a marine problem, with major impacts on seabirds and other marine life, and on aesthetic quality. With reduced oil inputs from marine transportation, and with vessel operation and design improvements, estimated oil inputs into the marine environment are declining (UNEP-GPA 2006a) (see Figure 4.11), although in the ROPME Sea Area about 270 000 tonnes of oil are still spilled annually in ballast water. The total oil load to the ocean includes 3 per cent from accidental spills from oil platforms, and 13 per cent from oil transportation spills (National Academy of Sciences 2003). Despite international efforts, solid waste and litter problems continue to worsen in both freshwater and marine systems, as a result of inappropriate disposal of non- or slowly degradable materials from land-based and marine sources (UNEP 2005a).”

4.5 Beach or Coastal Modification and Implications

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4.3 Oxygen Depletion in the Ocean

OXYGEN DEPLETION: A harmful algal bloom of the dinoflagellates Noctiluca scintillans, known as a red tide Organic materials, from such sources as algal blooms and discharges from domestic wastewater treatment plants and food-processing operations, are decomposed by oxygen-consuming microbes in waterbodies. This pollution is typically measured as the biochemical oxygen demand (BOD). High BOD levels can cause oxygen depletion, jeopardizing fish and other aquatic species. Lake Erie’s oxygen- depleted bottom zone, for example, has expanded since 1998, with negative environmental impacts. Some coastal areas also undergo oxygen depletion, including the eastern and southern coasts of North America, southern coasts of China and Japan, and large areas around Europe (WWAP 2006).

  • From: Research Document – 2012/072

State of physical, biological, and selected fishery resources of Pacific Canadian marine ecosystems in 2011

By J.R. Irvine and W.R. Crawford

Scientists have reported alarmingly low oxygen concentrations in near-shore waters of the Oregon coast in summer, being in 2002 and most severely in 2006. High crab mortalities on the ocean bottom took place in these summers. Low oxygen concentrations (less than 1 ml/L) have also been observed on off southwest Vancouver Island since 2002, with concentrations of 0.7 ml/L at 150 metres depth recorded in 2006 and 2009, the lowest in the 50-year record. Concentration was 1.0 and 1.1 ml/L in 2010 and 2011, respectively. Hypoxia on the Canadian shelf is much less severe than off Oregon and Washington, and mortality of bottom life has not been reported.

  • From swissinfo.ch : Oceans could run out of oxygen

by Isobel Leybold-Johnson, swissinfo.ch
Feb 11, 2012 – 14:03

Global warming could lead to more of the world’s oceans becoming “dead zones” – where a lack of oxygen leads to marine life dying out.

This was the conclusion of recent analysis of marine oxygen conditions over the past 20,000 years, co-authored by the Federal Institute of Technology Zurich (ETHZ).

Oceans are already oxygen-starved in places: every summer some areas of the northeastern Pacific see huge numbers of dead fish, shrimp or molluscs washed up on beaches.

This is caused by marine animals suffocating because the water contains too little of the vital O2 they need to breathe – or none at all. It is not only an ecological problem, the local fishing industry is affected as well.

Currently around 15 per cent of oceans are considered oxygen-depleted or anoxic “dead zones”.

“There’s been a very longstanding debate about the influence of global warming on the concentration of oxygen in the ocean, basically because the ocean oxygen concentration measurements of the past decades have not been very conclusive,” Samuel Jaccard from the ETHZ’s Geological Institute told swissinfo.ch.

This is why Jaccard and Eric Galbraith from McGill University in Canada decided to go back in time and reconstruct how the oxygen content has changed in oceans in the past 20,000 years, with the focus on the Pacific and Indian Oceans.

Temperature rise

Their study, published in Nature Geoscience, showed that the average global temperature rise of around at least two degrees Celsius between the peak and the end of the last Ice Age (between about 10,000-20,000 years ago) had a massive effect on the oxygen content of seawater.

“The warmer the global average temperature, the more extended the oxygen minimum zones are, so the volume of these oxygen-poor water bodies is more extended during warm periods than in cold periods,” Jaccard said.

What is worrying is that, currently, global average temperature is predicted to rise by at least two degrees in the coming century due to climate change. This is of a similar magnitude to the warming the planet has undergone since the last Ice Age 20,000 years ago.

“So we would assume that if, indeed, temperatures are increasing in the next 100 years, these oxygen minimum zones would also increase in volume and that the general oxygen concentration of the ocean will decrease,” Jaccard said.

And what is more: “our analysis has shown that not only was absolute temperature important, but also the rate of change, so the faster the warming, the more expanded these zones are”.

Oxygen in seawater mainly comes from gas exchange between the water’s surface and the atmosphere. As temperatures at the surface increase, the dissolved oxygen supply below the surface gets used up more quickly. It’s a little like turning down the oxygen pump in a fish tank, says Jaccard.

Suffering oceans

Dead zones are a topic well known to green campaigners and are not just limited to the biodiversity-rich deep oceans, explains Jochen Lamp, a marine expert at WWF in Germany.
 
They also affect the shallow seas like the Baltic Sea, which are subject to eutrophication: when nutrients from the land and agriculture cause over-enrichment of the water and the growth of algal blooms. These blooms then deplete the water’s oxygen.

But whereas it is easier to tackle shallow seas dead zones by controlling nutrient input, such as by having low nutrient agriculture, climate change adaptation is “a much more long lasting and complicated process”, said Lamp.

Even if countries such as Switzerland can agree on measures – the Rio+20 conference on sustainable development is scheduled for June – the change in the trend may not be seen for 50-70 years, he added.

Overall the world’s oceans are suffering: there is also overfishing and the other effects of climate change like the acidification of the waters.

Oceans are a delicately balanced ecosystem. “We hope that the balance will re-establish, but there is a lot of human impact in this imbalance and we do not yet know what will happen in reality during the next decades,” warned Lamp.

Isobel Leybold-Johnson, swissinfo.ch

Jaccard SL & Galbraith ED. Large climate-driven changes of oceanic oxygen concentrations during the last deglaciation.

The article was published online in Nature Geoscience on December 18, 2011. The research was highlighted in the ETH Life journal in January 2012.

Deep water in the North Pacific Ocean already has the most acidic water in the global ocean and the British Columbia continental shelf might see negative impacts of this feature sooner than most oceanic waters.

Oxygen depletion in the Gulf of Mexico has created a huge ‘dead zone,’ with major negative impacts on biodiversity and fisheries (MA 2005) (see Chapter 6).

4.4 Ocean Pollutants

Return to Index

4.1 Sensors and the Collection of Physical Data

I have listed here a number of ways to monitor physical factors of ecosystems at various levels and locations. [blockquote]

  • Local monitors of all exhibit tanks to show different parameters.
    • oxygen levels of aerated vs bottom muds
    • ph change as photosynthesis changes in a green pool
    • set up a green tank highly enriched with nutrients for this
    • have a “convertible tank” where automatic changes can be introduced which then can register abiotic changes on the instruments. This provides great opportunities for schools to do research. For instance a tank may have a screen barrier separating two populations of fish or invertebrates. Oxygen, Co2 pH and other sensors monitors the whole tank. At periodic intervals, a gate is lowered seperating the water bodies of the two tanks, on the monitors, digital or graphics show a timeline and the change in physical factors contrasting the opposing sides.
    • demo of currents feeding barnacles.. ie dependence on that factors
  • Remote site monitors.
    • interactive modelling with temperature data from Race Rocks.. and implications for global change.
    • atmospheric and oceanographic sensors monitoring at Race Rocks.
    • Links and interpretations to physical measurements in real time from the Venus sub-sea research program.
    • Links and interpretations to physical measurements in real time from the Neptune sub-sea research program.
    • Links to the Victoria weather network... school contribution a part of this.[blockquote]

     

  • Index
  • 4.2 The importance of pH. ( ocean Acidification)

4.2 The Importance of pH

The Importance of pH:
The issue of ocean Acidification linked to Climate Change now has a a serious implication for Shellfish Producers. Their website reflects these concerns: http://bcsga.ca/ocean-acidification/

oceanprofileA few physical factors have a disproportionate effect on the distribution of organisms and the fact that humans play a large role in their modification means that their effects on the sustainability of ecosystems is rather importantaragonite, ph
Canadian Science Advisory Secretariat Research Document – 2008/013 State of physical, biological, and selected fishery resources of Pacific Canadian marine ecosystems(Page 37 of pdf file) Ocean acidification off the West Coast by Debby Ianson, Fisheries and Oceans Canada “Global oceans are becoming more acidic due to increasing carbon dioxide (Orr et al. 2005). Much of the extra CO2 released by burning fossil fuels ends up in the oceans, increasing the dissolved inorganic carbon concentration (DIC). As DIC increases, the relative proportions of carbon species shift (specifically from the carbonate ion to the bicarbonate ion), resulting in an increase in acidity and a decrease in pH (Strum and Morgan, 1981).

At present the pH of seawater has decreased by about 0.1 due to oceanic uptake of anthropogenic carbon and is projected to decrease by 0.4 by the year 2050 (Orr et al. 2005). The decrease in pH (and concurrent decrease in carbonate ion) means that organisms that produce calcite and aragonite shells or structures, such as pteropods, corals and shellfish, are threatened (The Royal Society, 2005).” “Very few data from the carbonate system have been collected on the Canadian west coast; however these few observations show that Juan de Fuca Strait and the Vancouver Island Coastal Current experience high pCO2 water due to tidal mixing in the Strait, which brings water high in DIC and low in pH to the surface (Ianson et al. 2003). An additional study with high spatial resolution confirms the high surface pCO2 (400 — 800 ppm; Nemcek et al, in press) in this area estimated by Ianson et al. (2003) but has no complimentary measurements (such as DIC) with which to determine pH in the Strait.”

From “WATER: http://www.unep.org/geo/geo4/report/04_Water.pdf Rainwater and ocean acidification Acidity in rainwater is caused by the dissolution of atmospheric CO2, as well as by atmospheric transport and deposition of nitrogen and sulphur compounds (see Chapters 2 and 3). This is important because biological productivity is closely linked to acidity (see Chapter 3). The box on acidifying cycles in Chapter 3 describes some of the impacts of acid deposition on the world’s forests and lakes. The oceans have absorbed about half of the global CO2 emissions to the atmosphere over the past 200years (see Chapter 2), resulting in the increasing acidification of ocean waters (The Royal Society 2005). Acidification will continue, regardless of any immediate reduction in emissions. Additional acidification would take place if proposals to release industrially produced and compressed CO2 at or above the deep sea floor are put into practice (IPCC 2005). To date, injection of CO2 into seawater has been investigated only in small-scale laboratory experiments and models. Although the effects of increasing CO2 concentration on marine organisms would have ecosystem consequences, no controlledecosystem experiments have been performed in the deep ocean nor any environmental thresholds identified. The impacts of ocean acidification are speculative, but could be profound, constraining or even preventing the growth of marine animals such as corals and plankton. They could affect global food security via changes in ocean food webs, and, at the local scale, negatively affect the potential of coral reefs for dive tourism and for protecting coastlines against extreme wave events. It is presently unclear how species and ecosystems will adapt to sustained, elevated CO2 levels (IPCC 2005). Projections give reductions in average global surface ocean pH (acidity) values of between 0.14and 0.35units over the 21st century, adding to the present decrease of 0.1 units since pre-industrial times(IPCC 2007). Managing water issues related to climate change Global-scale changes to the water environment associated with climate change include higher sea surface temperatures, disruption of global ocean currents, changes in regional and local precipitation patterns, and ocean acidification. These issues are typically addressed through global efforts, such as the UN Framework Convention on Climate Change and its Kyoto Protocol (see Chapter 2). Management at the global level involves numerous actions at regional, national and local scales. Many global conventions and treaties are implemented on this basis, with their effectiveness depending on the willingness of individual countries to contribute to their achievement. Because these changes are linked to other environmental issues (for example, land use and biodiversity), they must also be addressed by other binding or non-binding treaties and instruments (see Chapter 8). Major responses to the drivers of climate change – primarily the increased burning of fossil fuels for energy – are analysed in Chapter 2. These responses are generally at the international level, and require concerted action by governments over the long-term, involving legal and market- driven approaches. Focus is on responses to climate change-related impacts affecting the water environment that involve regulation, adaptation and restoration

Pacific Ocean acid levels jeopardizing marine life

Vancouver Island researchers use artificial tide pools to study threat
From CBC News
Posted: Jul 17, 2012 2:17 AM PT
Last Updated: Jul 17, 2012 12:19 PM PT

Very few data from the carbonate system have been collected on the Canadian west coast; however these few observations show that Juan de Fuca Strait and the Vancouver
Island Coastal Current experience high pCO2 water due to tidal mixing in
the Strait, which brings water high in DIC and low in pH to the surface
(Ianson et al. 2003).

An additional study with high spatial resolution
confirms the high surface pCO2 (400 — 800 ppm; Nemcek et al, in press) in
this area estimated by Ianson et al. (2003) but has no complimentary
measurements (such as DIC) with which to determine pH in the Strait.”
The foillowing is taken from the publication:”WATER”
http://www.unep.org/geo/geo4/report/04_Water.pdf”

Rainwater and ocean acidification : Acidity in rainwater is caused by the dissolution
of atmospheric CO2, as well as by atmospheric transport and deposition of
nitrogen and sulphur compounds (see Chapters 2 and 3). This is important
because biological productivity is closely linked to acidity (see Chapter
3). The box on acidifying cycles in Chapter 3 describes some of the
impacts of acid deposition on the world’s forests and lakes. The oceans
have absorbed about half of the global CO2 emissions to the atmosphere
over the past 200years (see Chapter 2), resulting in the increasing
acidification of ocean waters (The Royal Society 2005). Acidification will
continue, regardless of any immediate reduction in emissions. Additional
acidification would take place if proposals to release industrially
produced and compressed CO2 at or above the deep sea floor are put into
practice (IPCC 2005). To date, injection of CO2 into seawater has been
investigated only in small-scale laboratory experiments and models.
Although the effects of increasing CO2 concentration on marine organisms
would have ecosystem consequences, no controlled ecosystem experiments have
been performed in the deep ocean nor any environmental thresholds
identified. The impacts of ocean acidification are speculative, but could
be profound, constraining or even preventing the growth of marine animals
such as corals and plankton. They could affect global food security via
changes in ocean food webs, and, at the local scale, negatively affect the
potential of coral reefs for dive tourism and for protecting coastlines
against extreme wave events. It is presently unclear how species and
ecosystems will adapt to sustained, elevated CO2 levels (IPCC 2005).
Projections give reductions in average global surface ocean pH (acidity)
values of between 0.14and 0.35units over the 21st century, adding to the
present decrease of 0.1 units since pre-industrial times(IPCC 2007).

Managing water issues related to climate change Global-scale changes to the water
environment associated with climate change include higher sea surface
temperatures, disruption of global ocean currents, changes in regional and
local precipitation patterns, and ocean acidification. These issues are
typically addressed through global efforts, such as the UN Framework
Convention on Climate Change and its Kyoto Protocol (see Chapter 2).
Management at the global level involves numerous actions at regional,
national and local scales. Many global conventions and treaties are
implemented on this basis, with their effectiveness depending on the
willingness of individual countries to contribute to their achievement.
Because these changes are linked to other environmental issues (for
example, land use and biodiversity), they must also be addressed by other
binding or non-binding treaties and instruments (see Chapter 8). Major
responses to the drivers of climate change – primarily the increased
burning of fossil fuels for energy – are analyzed in Chapter 2. These
responses are generally at the international level, and require concerted
action by governments over the long-term, involving legal and market-
driven approaches. Focus is on responses to climate change-related impacts
affecting the water environment that involve regulation, adaptation and
restoration .

4.3 Oxygen depletion

Return to Index

4.0 Physical or Abiotic Factors

4.0 Physical or Abiotic Factors

Part of the structure of an ecosystem is its physical factors. The opportunity in the Marine Centre to demonstrate the close dependence of organisms on physical factors cannot be missed. It is a good way to emphasize to the public that one cannot seperate the physical and the living world and therefore one has to recognize that changing physical factors will have a direct impact on biodversity and the integrity of marine ecosystems. It is also an opportunity to break down the artificial barriers between biology, physics, chemistry and geology.

An approach which I have used on the racerocks.com website has been to treat all physical factors in terms of how they affect life organisms. Measuring the factor is one aspect , but recognizing the impact that those factors have on organisms presents a more interesting aspect. See examples on the links from the data page index at: http://www.racerocks.com/racerock/eco/ecodata.htm

So much of how we interact with Marine environments may influence the physical factors in which organisms have evolved to live for millions of years. Present the wide array of factors, with sensor feeds from a number of ecosystems.. Have specific examples of how the distribution of organisms is determined by those factors and how humans are changing some of those factors too quickly. A few summary points follow:

  • Successional changes caused by changes of abiotic factors.
  • The Physical Story. The marriage of the physical and life sciences.
  • How geology-topography affects the distribution of life.
  • A display of life zones and biodiversity connected to physical factors.
  • Live remote camera control station. Available on Kiosk mode computers access to several remote control cameras. Some can be located nearby in a secure area ( maybe one of the ponds at James Island.)
  • The marine industries of the Georgia Strait.. the positive things that are happening.
  • How marine industry can be sustainable without contamination and alteration of the physical factors of the environment.
  • Energy budget of a disturbed seabird or mammal video streaming on walls of boats and human activity impacting.
  • Storm drains and implication of runoffs in altering physical factors.
  • Agriculture and the sea… use of fertilizers pesticides on ocean ecosystems. Tie into interconnectivity of ecosystems.
  • Climate change and its effects on the oceans.
  • Part of the Structure and Function of Ecosystems: Role in energy flow and material cycles. Reference: Structure and Function of Ecosystems:http://www.racerocks.com/racerock/education/curricula/projects/structfunct.htm

4.1 Sensors and Data Collection for research.

I have listed here a number of ways to monitor physical factors of ecosystems at various levels and locations..

  • Local monitors of all exhibit tanks to show different parameters.
    • oxygen levels of aerated vs bottom muds
    • ph change as photosynthesis changes in a green pool
    • set up a green tank highly enriched with nutrients for this
    • have a “convertible tank” where automatic changes can be introduced which then can register abiotic changes on the instruments. This provides great opportunities for schools to do research. For instance a tank may have a screen barrier seperating two populations of fish or invertebrates. Oxygen, Co2 pH and other sensors monitors the whole tank. At periodic intervals, a gate is lowered seperating the water bodies of the two tanks, on the monitors, digital or graphics show a timeline and the change in physical factors contrasting the opposing sides.
    • demo of currents feeding barnacles.. ie dependence on that factors
  • Remote site monitors.
    • interactive modelling with temperature data from Race Rocks.. and implications for global change.
    • atmospheric and oceanographic sensors monitoring at Race Rocks.
    • Links and interpretations to physical measurements in real time from the Venus sub-sea research program.
    • Links and interpretations to physical measurements in real time from the Neptune sub-sea research program.
    • Links to the Victoria weather network… school contribution a part of this

4.1 Sensors and the Collection of Physical Data

4.2 The Importance of pH.

Return to Index

3.1.0 Ecosystem Integrity

The values of maintaining ecosystems that function in an unaltered and interconnected way are paramount. The importance of controlling introduced species and the controls that must be placed on fishing have to be emphasized. Habitat loss is a major problem. Without secure habitats, the ecosystem services are degraded. Ecosystems have structure and function . If one sees the many facets that make up a well functioning ecosytem with negative feedback loops keeping it in a steady state, then they may have a better idea about how impacts on the ecosystem can have far-reaching effects.

Reference FROM:” WATER” http://www.unep.org/geo/geo4/report/04_Water.pdf

Ecosystem integrity

Since 1987, many coastal and marine ecosystems and most freshwater ecosystems have continued to be heavily degraded, with many completely lost, some irreversibly (Finlayson and D’Cruz 2005, Argady and Alder 2005) (see Box 4.3). It has been projected that many coral reefs will disappear by 2040 because of rising seawater temperatures (Argady and Alder 2005). Freshwater and marine species are declining more rapidly than those of other ecosystems (see Figure 5.2d). Wetlands, as defined by the Ramsar Convention, cover 9–13 million km2 globally, but more than 50 per cent of inland waters (excluding lakes and rivers) have been lost in parts of North America, Europe, and Australia (Finlayson and D’Cruz 2005). Although data limitations preclude an accurate assessment of global wetland losses, there are many well- documented examples of dramatic degradation or loss of individual wetlands. The surface area of the Mesopotamian marshes, for example, decreased from 15 000–20 000 km2 in the 1950s to less than 400 km2 around the year 2000 because of excessive water withdrawals, damming and industrial development (UNEP 2001) but is now recovering (see Figure 4.12). In Bangladesh, more than 50 per cent of mangroves and coastal mudflats outside the protected Sunderbans have been converted or degraded.

Reclamation of inland and coastal water systems has caused the loss of many coastal and floodplain ecosystems and their services. Wetland losses have changed flow regimes, increased flooding in some places, and reduced wildlife habitat. For centuries, coastal reclamation practice has been to reclaim as much land from the sea as possible. However, a major shift in management practice has seen the introduction of managed retreat for the marshy coastlines of Western Europe and the United States. Although limited in area compared to marine and terrestrial ecosystems, many freshwater wetlands are relatively species-rich, supporting a disproportionately large number of species of certain faunal groups. However, populations of freshwater vertebrate species suffered an average decline of almost 50 per cent between 1987 and 2003, remarkably more dramatic than for terrestrial or marine species over the same time scale (Loh and Wackernagel 2004). Although freshwater invertebrates are less well assessed, the few available data suggest an even more dramatic decline, with possibly more than 50per cent being threatened (Finlayson and D’Cruz 2005). The continuing loss and degradation of freshwater and coastal habitats is likely to affect aquatic biodiversity more strongly, as these habitats, compared to many terrestrial ecosystems, are disproportionately species-rich and productive, and also disproportionately imperiled.

The introduction of invasive alien species, via ship ballast water, aquaculture or other sources, has disrupted biological communities in many coastal and marine aquatic ecosystems. Many inland ecosystems have also suffered from invasive plants and animals. Some lakes, reservoirs and waterways are covered by invasive weeds, while invasive fish and invertebrates have severely affected many inland fisheries. Declines in global marine and freshwater fisheries are dramatic examples of large-scale ecosystem degradation related to persistent overfishing,

http://www.maweb.org/documents/document.358.aspx.pdf

Mitigation of climate change. Sea level rise and increases in
storm surges associated with climate change will result in the
erosion of shores and habitat, increased salinity of estuaries and
freshwater aquifers, altered tidal ranges in rivers and bays,
changes in sediment and nutrient transport, and increased coastal
flooding and, in turn, could increase the vulnerability of some
coastal populations. Wetlands, such as mangroves and flood-
plains, can play a critical role in the physical buffering of climate
change impacts.

3.1.1 Key Species

Return to Index

Metchosin 2010 Sustainability Report: Building Resilience for Uncertainty.

The Metchosin 2010 Sustainability Report: Building Resilience for Uncertainty.

( Note: this has been converted from a WORD document, so some formatting has been changed)

March 29, 2011

EXECUTIVE SUMMARY

In 2009 the District of Metchosin signed the British Columbia Climate Action Charter, committing the District to reducing greenhouse gas (GHG) emissions. The high environmental and financial costs of dependency on fossil fuels and the potential effects of climate change make Metchosin vulnerable to a range of new challenges, including increased costs for municipal services, vulnerability to food and water shortages, and increased risk of natural disasters.

This report outlines ways in which the District and residents can prepare for these challenges by building resilience and sustainability into the community through personal choices and careful government decision making and it provides recommendations for action in a number of specific areas.

SUMMARY OF RECOMMENDED ACTIONS
FORESTS

Metchosin’s existing protected areas, current zoning, and tree cutting bylaws will help to maintain tree cover in our largely forested municipality and thereby facilitate carbon storage and reduce water run-off and erosion. The following recommendations will further enhance Metchosin’s ability to protect habitat and store and sequester carbon.

  1. Celebrate the values associated with Metchosin’s forests-including carbon sequestration and storage-and maintain current municipal efforts to protect them;
  2. Increase protected forest lands in Metchosin, where agriculture is not affected;
  3. Consider forest restoration and better management of our existing forests (for example, through invasive species control);
  4. Increase awareness of issues such as insects and disease in our forests, and consider implementing a program such as FireSmart to reduce the risk of forest fires.

MARINE COASTLINE

Metchosin’s existing shoreline slopes development permit area, large lots and low density zoning have helped to reduce development impacts along coastlines, and have protected marine coastal habitat and its ability to store and sequester carbon. Metchosin will help achieve sustainability and resiliency in its coastal areas by implementing the following:

  1. Lobby senior governments to recognize that municipalities are often the first to notice problems along their marine coasts and municipalities need the authority to protect these ecosystems;
  2. Consider zoning all marine shorelines in Metchosin as a development permit area in order to protect their natural values;
  3. Establish a program to document and monitor coastal resources, including eel-grass and kelp beds, and forage fish habitat, with the goal of ensuring no net loss of those resources;
  4. Produce a pamphlet to help educate both the public, and land owners with property bordering on the shoreline, of the sensitivity of coastal ecosystems, in order to reduce harmful impacts on coastal ecosystems;
  5. Identify and map areas important to forage fish and consider a method of restricting beach fires and other damaging activities in these areas at times of the year which are sensitive for forage fish.

GROUND and SURFACE WATER

Water is fundamental to all living things and locally we must ensure the continued quantity and quality of our water supply. Metchosin has done much to ensure the protection of its surface waters with the Rainwater Protection and Management bylaw. Two of Metchosin’s lakes, Matheson and Blinkhorn, have no development around their shores, which protects their healthy aquatic and riparian ecosystems. The Bilston Creek Development Permit Area zoning reduces the impact of development on Bilston Creek. The following actions will further protect the District’s critically important water resources:

  1. Incorporate into the OCP recognition of the importance of sustaining our surface water, groundwater, and water table (i.e., aquatic systems) in order to provide safe, clean water for our needs while ensuring sufficient water for natural (ecological) systems;
  2. Develop a groundwater protection bylaw to protect groundwater quality and sustainability into the future;
  3. Consider control of aggressive introduced species that lead to rapid infill of wetlands (e.g. purple loosestrife and yellow iris);
  1. Encourage the restoration of wetlands;
  2. Encourage the orderly flow of piped water, to extend the life of the CRD water infrastructure as long as possible into the future;
  1. Promote rainwater harvest, xeriscaping, and efficient irrigation to conserve groundwater;
  2. Protect  groundwater and all bodies of water from pollution;
  3. Support changes to building and plumbing codes to permit  the reuse of greywater, for activities where it is deemed safe.
  4. Encourage farmers to improve agricultural irrigation water productivity (e.g. drip irrigation).

GREEN AND BLUE SPACES

Metchosin is fortunate to have considerable intact natural areas. It is important to preserve unprotected green and blue spaces, in part to maintain the ecosystem services they provide. Ways to ensure this are:

  1. Lobby the provincial government to protect provincial Crown lands in Metchosin as parkland;
  2. Lobby the federal government to protect/preserve the ecological integrity and natural areas of the lands it owns (i.e., Mary Hill, Rocky Point, and Albert Head);
  3. Support efforts to protect areas identified in the 2011 Parks report (Report on Ecological Values of Potential Park Acquisitions), the OCP and the Blue/Green Spaces Strategy;
  4. Support residents and other organizations in their desire to protect the natural values of their properties through placing voluntary conservation covenants on their properties.

AGRICULTURE

Maintaining and expanding local agriculture is an important component of the strategy to enhance Metchosin’s ability to respond to the threat of a changing climate and dependence on off-Island food sources. The following actions will help protect the District’s agricultural potential:

  1. Support and enhance the Agricultural Land Commission ‘s mandate to preserve agricultural lands for agriculture;
  2. Maintain and, where possible, strengthen the protection of agricultural land, possibly through the adoption of an Agriculture Area Plan;
  3. Support efforts to improve public awareness of local agriculture and farmer access to local markets;
  4. Support sufficient vending opportunity in Metchosin and other area markets;
  5. Support programs  providing educational and extension services to new farmers, including workshop, demonstration, mentorship and other services;
  6. Support and encourage local abattoir capacity;
  7. Support and encourage local agricultural producers;
  8. Support the Peninsula Agriculture Commission as regional venue to protect and preserve agriculture in southern Vancouver Island;
  9. Support sustainable greenhouse capability;
  10. Support edge planning (buffering/hedgerows) around individual farms and around the ALR;
  11. Support initiatives to improve long term leasing opportunities for agriculture;
  12. Consider options for improving agricultural irrigation water productivity (eg drip irrigation);
  13. Encourage and support organic farming practices and ecological stewardship;
  14. Encourage the most efficient use of ground and surface water possible;
  15. Educate the public on the control of invasive and noxious weeds, such as Tansy ragwort, gorse and Scotch broom;
  16. Support initiatives for opportunities for small farmers to increase and diversify incomes through value-added products, agricultural services, and on-farm processing;
  17. Support Vancouver Island University’s proposed Agriculture Resource and Innovation Centre as a vehicle for the provision of education and extension services to Vancouver Island farmers.

RECREATION

Metchosin residents have many opportunities to enjoy recreational activities at home instead of traveling to other municipalities. Some ways to increase these opportunities are:

  1. Encourage the use of Metchosin sports facilities by promoting more participation by Metchosin residents (e.g. cricket field, tennis court, riding rink and dirt jump park);
  2. Encourage partnerships with the YM/WCA-Camp Thunderbird, the Boys and Girls Club-Metchosin Wilderness Camp, local schools, Pearson College and other appropriate organizations, for expansion of the use of their facilities to Metchosin residents;
  3. Consider a partnership to develop an all-weather playing field and to promote the expanded use of the cricket field.

 ENERGY AND GREEN HOUSE GAS EMISSIONS

  1. TRANSPORTATIO

Transportation is cited as the leading cause of Metchosin’s green house gas (GHG) emissions.  In order to reduce the District’s GHG emissions, it is important to improve access to public transportation and to overcome the community’s reluctance to use it. The following actions will help:

  1. Continue to improve the availability of public transportation, bus shelters, secure bike storage, park & rides and carpooling by liaising with BC Transit and promote these travel options through public education;
  2. Continue to improve pedestrian and non-motorized corridors (trails) by constructing bike lanes and trails where applicable and when funding permits;
  3. Encourage and support a vehicle sharing co-op;
  4. Consider the environmental standards of any vehicle purchased by the municipality and make purchases that best support the municipal objectives and the environment;
  5. Review road design standards for municipal roads to ensure that they are in keeping with the character of the District, that they minimize environmental degradation and the potential for erosion, that they foster traffic safety and that they permit the safe and proper access for emergency and road maintenance vehicles;
  6. As technology and funding opportunities become available, facilitate the establishment of an electric vehicle recharging station in the village centre.

2. BUILT STRUCTURES (including Residential)

The District has committed to reducing GHG emissions over 2007 levels by 33% by 2020. Buildings account for 13.8% of emissions. The provincial government has authority over the building code. Lobbying the province for changes which will enable greener buildings will help reduce emissions. Additional ways to achieve this are:

  1. Consider land use decisions, as appropriate for Metchosin, based on changes in, and projections of, groundwater and aquifer levels, snow loads, extreme rain and droughts, greater storm surges along the shoreline. Revise snow load requirements, road drainage plans, floodplain and shoreline regulations and locally-adapted fire smart guidelines as needed;
  2. Continue to assess bridges, septic systems and new infrastructure in floodplains using 100-200 year flood projections;
  3. Lobby the province for changes to the Building Code that allow for greener building practices (e.g. greywater reuse systems, composting toilets);
  4. Require all new construction to have minimal environmental impact, including minimizing GHG emissions;
  5. Encourage policies promoting building methods that have minimal impact on ecosystems and landscape;
  6. Continue to encourage building practices that minimize or offset the loss of pervious surfaces (see District Rainwater Management bylaw);
  7. Allow other green building policies that can be demonstrated to meet the functions and safety objectives of the building code while protecting the interests of future owners, such as green roofs, night sky friendly lighting, etc.;
  8. Post a personal carbon footprint calculator on the District website;
  9. Post information on the District website about the latest technological innovations on energy use reduction strategies (e.g., see appendix 5);
  10. Post government sponsored homeowner initiatives for carbon footprint and energy use reduction on the district website with links to Energy Canada (http://oee.nrcan.gc.ca/english/), LiveSmart BC (http://www.livesmartbc.ca/), BC Hydro (http://www.bchydro.com/), and BC Sustainable Living (http://www.bcsea.org/solutions) websites (see appendices 3, 4);
  11. Investigate ways in which the District might help residents with renewable energy installations and energy efficiency improvements costs, and consider the concept of Local Improvement Charges;
  12. Provide education on, and encourage, building upgrades regarding energy and water use, such as low flush or composting toilets, energy and water efficient appliances, rainwater storage, green roof, low emission windows, heat recovery systems including ground loop energy systems and solar electric and solar thermal energy systems;
  13. Encourage building new structures to have net zero energy and water impact;
  14. Encourage home energy audits, a first step to help inform home and business owners on their options when considering energy efficiency upgrades (such as sealing window and door drafts);
  15. Develop relevant plans regarding emergency management to take into account increased forest fire risk, flooding, and wind, rain and snow storms;
  16. Consider methods to reduce the footprint of buildings and non-food producing activities on agricultural land (eg encourage compact homes, shops, barns) and that the house and accessory building(s) and storage (parking) footprint does not affect agricultural production and viability.
  1. SOLID WASTE

Metchosin residents are responsible for the disposal of septic wastes. The CRD has a well used recycling system in place, which is continually undergoing innovative change. Further suggestions for the District are:

  1. Encourage the use of techniques which separate greywater from other sources of liquid waste so that greywater can be stored and used for irrigation (excluding irrigation of crops for human consumption);
  2. Lobby for changes to building and plumbing codes to permit the reuse of greywater and composting toilets;
  3. Encourage residents to maintain their septic systems to proper functioning condition and make information about proper septic system construction and maintenance available to Metchosin residents;
  4. Consider the development of a municipal compost yard;
  5. Encourage residents to adopt practices to contain household and kitchen garbage in secure, bear-proof receptacles.

TABLE OF CONTENTS

Executive Summary ——————————————————————————– 1
Table of Contents ———————————————————————————— 6
Introduction ——————————————————————————————–                                                                                          Climate Action Charter —————————————————————- 78

 

Forests ———————————————————————————————- 11
Marine Coastline ————————————————————————————- 12
Ground and Surface Water ————————————————————————– 14
Green and Blue Spaces —————————————————————————— 16
Agriculture ———————————————————————————————— 17
Recreation ———————————————————————————————— 19
Energy and Green House Gas Emissions ——————————————————Transportation ——————————————————————————–Built Structures (including Residential) ————————————————-

Solid Waste ————————————————————————————

2020

 

21

 

24

Appendix 1Metchosin Community Energy and Greenhouse Gas Emissions Inventory: 2007 –— 26
Appendix 2Mitigating and Adapting to Climate Change through the Conservation of Nature —– 28
Appendix 3Examples of Canadian Grant Initiatives ———————————————————- 29
Appendix 4Examples of Federal support for Home Retrofits October 2010 —————————- 30
Appendix 5Currently Viable Energy Initiatives —————————————————————– 31
References ———————————————————————————————- 32
Further Reading —————————————————————————————-

INTRODUCTION: SUSTAINABILITY AND RESILIENCE

In 2009, the District of Metchosin signed the British Columbia Climate Action Charter, committing us to reducing our GHG emissions. The high environmental and financial costs of dependency on fossil fuels and the potential effects of climate change make Metchosin vulnerable to a range of new challenges, including increased costs for municipal services, vulnerability to food and water shortages, and increased risk of natural disasters.

This report outlines ways in which the District and residents can prepare for these challenges by building resilience and sustainability into this community through personal choices and careful government decision making, and provides recommendations for action in a number of specific areas.

The report addresses the following diverse but related topics: Forests; Marine Coastline; Freshwater; Green and Blue Spaces; Agriculture; Recreation, and Energy and Greenhouse Gas Emissions (Transportation, Built Structures, and Waste). Under each topic we review context (how the topic is related to the goals of resilience and sustainability) and issues (how the topic pertains specifically to Metchosin), and provide recommendations for both the municipal staff and the citizens of Metchosin.

The terms sustainability and sustainable development can have very different meanings for different people. In its simplest interpretation, sustainability implies managing social, economic and ecological systems in order to sustain healthy communities and healthy ecosystems. This is the definition of sustainability that is adopted for this report.

An essential aspect to sustainability will be achieving the ability to absorb, recover and adapt to conditions and events we cannot predict. In other words, we must manage our communities and regions for resilience in every sector, from the infrastructure we build, to the social systems that bind us together in coexistence and cooperation, to the ecosystems that provide services essential to our survival.

Resilience – the ability of a system to absorb shocks, to avoid crossing a threshold into an alternate and possibly irreversible new state, and to regenerate after disturbance (Resilience Alliance, 2009).

The challenges ahead are immense and will require global cooperation among nations if we have a hope of solving them; but the local level is where this translates to concrete and measurable action. Community sustainability and resilience are improved by addressing a wide variety of sectors, from human social and economic systems and human built systems to ecological systems.

Responding to climate change and resource uncertainty requires the following:

  • mitigation of climate impacts through a reduction of fossil fuel use and greenhouse gas (GHG) emissions (e.g. cycling trails);
  • adaptation of our activities and infrastructure for the unavoidable impacts, regardless of current mitigation measures (e.g. building infrastructure to 100-200 yr flood levels);
  • conservation of the ecosystem that provides life supporting services to us (e.g. protecting forests);
  • management of the resources we have (e.g. water conservation).

These four themes – climate mitigation, climate adaptation, ecological conservation, and resource management – underlie and are addressed by the various topics covered in this report. By acting to address these specific areas, we will make significant strides towards ensuring comprehensive community sustainability and resilience for Metchosin into the future.

Action has already begun in the form of the BC Climate Action Charter – a climate mitigation and resource management measure to which Metchosin is a signatory – which commits the municipality to achieving GHG neutrality within its municipal operations by 2012 and a municipality-wide reduction of 33% by 2020.  This report provides recommendations on how to work toward this commitment.

CLIMATE ACTION CHARTER

The Province of BC created a Climate Action Charter that states in part:

1      (e) governments urgently need to implement effective measures to reduce greenhouse gas (GHG) emissions and prepare for climate change impacts.

In 2009, the District of Metchosin signed the Climate Action Charter. Our community is committed by the Charter to the following goals:

  1. i.      being carbon neutral which respect to our operations by 2012,
  2. ii.     measuring and reporting on our community’s GHG emissions

The third goal of the Charter is written primarily for urban communities:

  1. iii.   creating complete, compact, more energy efficient rural and urban communities (e.g. foster a built environment that supports a reduction in car dependency and energy use, establish policies and processes that support fast tracking of green development projects, adopt zoning practices that encourage land use patterns that increase density and reduce sprawl.)

Metchosin feels that the rural and natural character of the municipality require a different and complementary approach to achieving the objectives of the charter – especially the third objective. For example, the Charter calls upon municipalities to

            “adopt zoning practices that encourage land use patterns that increase density …” as a   means of creating “compact, more energy efficient … communities.”

Increasing density is in direct conflict with Metchosin’s 1995 Official Community Plan (OCP). Metchosin must adopt its own, rural approach to addressing its commitments under the Charter. This will include maintaining the slow growth philosophy of the district, where small and slow is better.

In 1984, the district’s OCP projected a twenty year build-out population of 6,170; the census of 2006 reports a population of 4,795, significantly less than projected and a decrease from the previous census. In addition, Metchosin is a forested community with an agricultural base, important components in a complementary strategy to address climate change while maintaining and building resilience in the District.

The Climate Action Charter states in:

            1. (a) the scientific consensus is that increasing emissions of human caused greenhouse gases (GHG), including carbon dioxide, methane and other GHG emissions, that are released into the atmosphere are affecting Earth’s climate.

By maintaining large lot zoning and low population density, the district is able to retain its forested and agricultural land base and relatively pristine marine shoreline. In retaining its forested land base the District reduces the release of new carbon emissions into the atmosphere that would result from conversion of the natural landscape (through tree cutting and development), and continues to act as a carbon sink by sequestering carbon in its forests. Most of Metchosin’s forests are under eighty years of age and are, therefore, in a rapid carbon sequestering trajectory, benefiting the district and the region. Low density development and zoning has also reduced the potential for severe degradation of coastal marine ecosystems, which sequester and store carbon at a far greater rate than forests.

Protection of the agricultural potential of the community has long been a District priority. Local food production, by helping to reduce reliance on imported food with its attendant transportation and GHG emissions, is another method of reducing carbon use and building resilience into the community.

By signing the Climate Action Charter, the District recognizes that it has a duty to further address GHG emissions and to protect the community from the impacts of climate change, increasing energy costs and global instability by building resilience into the framework of the decision making process. Dependence on fossil fuels limits the District’s ability to make choices that protect the environment and food security, and affects decisions on financial matters that impact taxes.

To address the District’s commitments under the Climate Action Charter, Metchosin needs to do two things: reduce the amount of GHGs emitted, and increase (or at least maintain) the amount of GHGs that our plants pull out of the air (sequester). The District has always supported local agriculture, home based businesses, volunteer oragnisations, seniors initiatives, large lot zoning, environmental bylaws and others which help to mitigate GHG emissions.

To reduce emissions, it helps to understand where they are currently coming from. The province prepared Community Energy and Emissions Inventories in 2007 as a baseline to determine GHG emissions. Metchosin’s total GHG emissions for 2007 have been measured at 23,395 tons/yr (see Appendix 1). The three major contributors are: transportation (84%); buildings (13.8%); and solid waste (2.2%) (see diagram on next page). The three chapters, Transportation, Built Structures and Solid Waste, provide suggestions about how the District might reduce GHG emissions from these activities.

Source: Metchosin: Community Energy & Greenhouse Gas Emissions Inventory: 2007

To increase (or at least maintain) the amount of GHGs that the plants in Metchosin pull out of the air, the District must protect, and sometimes restore, the capacity of Metchosin’s ecosystems to sequester carbon – to photosynthesize. That is what much of the sections on Forests, Marine Coastline and Green and Blue Spaces are about.

The sections on Freshwater, Agriculture and Recreation provide measures that build and maintain resilience by providing local choices (sufficient clean water supply, food and local recreational opportunities) that can help sustain the community in times of change.

These recommendations will help Metchosin address its commitments under the Climate Action Charter – referred to earlier as mitigation. But they will also allow the District to build a community that is more resilient to inevitable changes in climate – that is, allow Metchosin to adapt to climate changes and the looming threat of peak oil. Protecting and enhancing ecosystems to ensure that they absorb greenhouse gases also protects those ecosystems for the other things that are valued – for biodiversity, for fish and wildlife, for recreation, and for the beauty that surrounds us.

FORESTS

Context                     

In 2005, approximately 5,634 hectares of Metchosin were forested. This amounts to about 76% of the District. Forest cover maps from the mid-19th century show almost all of Metchosin as forested. Most of Metchosin’s forests were logged in the early 20th century and have subsequently re-grown into mature 2nd-growth forest. Approximately 24% of Metchosin is currently non-forested, representing areas that have been cleared for agriculture, residential development and recreation (e.g., golf courses, playing fields).

Metchosin’s forests belong to the Coastal Douglas-Fir (CDF) ecological zone and the Very Dry Maritime Coastal Western Hemlock subzone (CWHxm). Both ecological zones have little remaining old-growth forest and a low percentage of protected areas. This means that Metchosin’s forests represent some of Canada’s most endangered forest types. The Department of National Defense (DND) lands at Rocky Point and Mary Hill contain the best remaining examples of CDF old forest globally. Most of Metchosin’s existing protected areas are forested.

Metchosin has more forest than any other Capital Regional District (CRD) municipality – almost 20% of all CRD forest is in Metchosin. Our current zoning and bylaws reflect our vision of maintaining a rural and natural environment, and help protect our trees and forests.

Metchosin’s forests are important for many reasons: as wildlife habitat; as a carbon sink and store; as a source of firewood; timber and non-timber forest products (such as mushrooms and floral greens); for intercepting rainfall and stabilizing slopes; for shade for people, aquatic species and animals; and for the aesthetic and spiritual values they impart to Metchosin. Protecting Metchosin’s forests also protects the ‘ecosystem services’ they provide (clean air, water and other necessities of life).

It is estimated that southern Vancouver Island’s old-growth Douglas-fir forests store approximately 500-700 tonnes/ha of carbon (Trofymow et al. 2008). Metchosin’s forests, mostly maturing second-growth, will contain less. Still, even if we assume a conservative measure of 300 tonnes/hectare, Metchosin’s forests contain at least 1.5 million tonnes of carbon. These forests sequester an additional (approximately) 1 tonnes/ha/yr, absorbing one quarter of Metchosin’s emissions. If areas are logged and replanted, carbon will be lost to the atmosphere, and it will take decades until that new forest is pulling in carbon at the same rate as the forest that was logged. If the area is logged and not regenerated as forest, the ability of that ecosystem to sequester carbon will be permanently lost (appendix 2). Maintaining (or increasing) Metchosin’s forested area is an important component of Metchosin’s overall GHG strategy.

Metchosin’s Tree Management Bylaw (287) limits the number of trees that may be removed annually without a permit and gives further protection to some species of trees.

Using wood from Metchosin’s forests as fuel – simply as firewood in our woodstoves or as a component of some more complex biomass energy generation program – is generally considered as a carbon-neutral source of energy (this assumes, among other things, that the wood is sustainably harvested). There may also be options to use a farm field for bioenergy production (such as fast-growing willow shrubs) to provide energy for a small biomass burning facility in the Village Centre to provide heat for the various municipal buildings and other Village centre facilities. This would require some investment – but may be one way to reduce Metchosin’s dependence on imported energy (and electricity) and to make use of local resources.

There may be opportunities to generate revenue through long-term legal protection of forested areas utilizing conservation offsets, a form of carbon offset. The price of a carbon offset on the Pacific Carbon Trust range from $10-$25/tonne and on the international Voluntary Carbon Standard registry from $3-$15/tonne (Briony Penn, 2010). However, these might have to be newly protected (not existing protected) areas and there is currently much uncertainty about how this newly-emerging market will work.

Issues:

  • Between 1986 and 2005, Metchosin’s forested area (tree cover density >50%) declined by 505 hectares (8.2%). This appears to be because of residential and golf course development, and clearing for agriculture;
  • Long term (100+ years) legal preservation of Metchosin forests is crucial to maintaining ecosystem resilience, to continue to sequester carbon emissions and as carbon storage;
  • Many of Metchosin’s forests are mature second-growth forests. As our forests age over the next century or two, fuels will accumulate and wildfire risk will increase. Forest fires will endanger lives and property, but will also increase GHG emissions and reduce GHG removal from the atmosphere by reducing the number of trees.

Recommendations

Metchosin’s existing protected areas, current zoning, and tree cutting bylaws will help to maintain tree cover in our largely forested municipality and thereby facilitate carbon storage and reduce water run-off and erosion. The following recommendations will further enhance Metchosin’s ability to protect habitat and store and sequester carbon.

  1. Celebrate the values associated with Metchosin’s forests, including carbon sequestration and storage, and maintain current municipal efforts to protect them.;
  2. Increase protected forest lands in Metchosin, where agriculture is not affected;
  3. Consider forest restoration and better management of our existing forests (for example, through invasive species control);
  4. Increase awareness of issues such as insects and disease in our forests, and consider implementing a program such as FireSmart to reduce the risk of forest fires.

MARINE COASTLINE

Context:

Metchosin has 937 ha (2,314 acres) of foreshore and land covered by water (OCP, 1995), and almost 50 km of marine shoreline.

Nearshore marine habitats are reported to store carbon efficiently and in large quantities. According to a report by the International Union for Conservation of Nature (Pidgeon, 2009), oceans, particularly nearshore coastal ecosystems, sequester vast amounts of carbon in sea grass beds and salt marshes. These ecosystems are extremely efficient at burying carbon in the sediment below them, where it can remain for millennia. They can store ten times more carbon in their soils per hectare than temperate forests. While the district has no legal authority over coastal marine habitats, Metchosin’s low population density, the designation of a shoreline slopes development permit area and zoning bylaws, help to protect these areas from development that might adversely affect critical coastal habitats and carbon sinks.

Although the Crown owns the foreshore to the high tide mark there are still considerable threats to the ecological integrity of this area. The shoreline is a dynamic interface between two systems, the terrestrial uplands and the open ocean. As typical of any natural systems, they cannot be separated in terms of management decisions as they have processes which interact.

Issues:

  • Metchosin has no legal authority over areas below the high tide mark and senior government departments with this authority suffer from cutbacks and low staffing levels that make protection of the marine shoreline and nearshore habitats problematic;
  • Some homeowners build hard shoreline protective buffers, which cause consequent erosion to the neighbouring properties and a cycle of building further hard shoreline protective buffers. These buffers scour beaches and nearshore ecosystems and lead to shoreline habitat destruction, including damage to eelgrass and kelp beds and forage fish habitat;
  • Forage fish (surf smelts and Pacific sand lance) spawn on local beaches and their spawning habitat and associated beach ecosystems are negatively impacted by increased human traffic, beach fires, and horseback riding;
  • The closure of the beaches to fire activity in neighbouring districts in recent years and the increase of fires on local beaches can have an effect on beach organisms, as well as air quality;
  • Destruction of shoreline vegetation by development removes valuable shade protection for migrating fish and leads to increased siltation;
  • Intertidal organisms and biodiversity are highly subject to the impacts from chemicals in stormwater runoff and from human sewage effluent from poorly functioning septic systems;
  • Unregulated boat traffic and motor emissions in ecologically sensitive marine areas can have a negative impacts on biodiversity;
  • There is an ever-increasing risk of coastal pollution from increased tanker traffic;
  • Unregulated cruise ships dumping in our waters can impact on local fisheries and ecosystems;
  • DND activities, such as underwater blasting and shoreline blasting and demolition, disturb shoreline habitat and affect both resident and migratory animal species;
  • Deforestation on upland slopes leads to deterioration of coastal ecosystems;
  • Erosion from road building, utility and sewer installation and subdivision development carry silt into the receiving waters and has a negative impact on filter feeders (e.g. clams, mussels and anemone) in the ocean;
  • Removal of materials from the coastline can contribute to coastal erosion.

Recommendations:

Metchosin’s existing shoreline slopes development permit area, large lots and low density zoning have helped to reduce development impacts along coastlines, and have protected marine coastal habitat and its ability to store and sequester carbon. Metchosin will help achieve sustainability and resiliency in its coastal areas by implementing the following:

  1. Lobby senior governments to recognize that municipalities are often the first to notice problems along their marine coasts and municipalities need the authority to protect these ecosystems;
  2. Consider zoning all marine shorelines in Metchosin as a development permit area in order to protect their natural values;
  3. Establish a program to document and monitor coastal resources, including eel-grass and kelp beds, and forage fish habitat, with the goal of ensuring no net loss of those resources;
  4. Produce a pamphlet to help educate both the public, and land owners with property bordering on the shoreline, of the sensitivity of coastal ecosystems, in order to reduce harmful impacts on coastal ecosystems;
  5. Identify and map areas important to forage fish and consider a method of restricting beach fires and other damaging activities in these areas at times of the year which are sensitive for forage fish.

GROUND and SURFACE WATER

Context

Within Metchosin there are creeks, streams, ponds, wetlands, seasonal watercourses, lagoons and lakes. The areas that surround these water bodies are the riparian zone and protection of the ecosystems within this zone is critical. The water bodies collectively serve essential functions in preserving the integrity of our natural water systems. Riparian zones link ecosystems within a landscape and help to circulate nutrients among different ecosystems.

Wetlands are extremely important as natural filters and runoff buffers, preventing erosion and sedimentation, and as storehouses of CO2. They are also important habitat for many species of waterfowl as well as many other birds, fishes, amphibians, mammals and insects.

All of these water features are connected to the underground water table, the groundwater which supplies our wells. All the other aquatic components feed the water table or feed off the water table; some doing both depending on the seasons. Metchosin has hundreds of drilled water wells and these wells depend of the continued health of all aquatic systems which combine to supply these wells.

It’s obvious that water supports the vegetation but the vegetation also supports the retention and distribution of water. The root systems and the organic material mixed with the soil retain water, which is ultimately used by the plants. These same root systems buffer the flow of water during heavy rains or snow melt and prevent erosion.

All our water systems contribute to the environmental health and quality of Metchosin and are a critically important consideration in any development that impacts water flow or water retention.

We are responsible for sustaining water that flows through our community as a consequence of rainfall and we have a responsibility for contributing to the conservation and management of the CRD water supply.

Metchosin has developed the Rainwater Protection and Management bylaw which states in part:

(the bylaw’s) “purpose is to provide for the protection and effective management of          rainwater and drainage; to maintain and improve water quality in watercourses, water      bodies and riparian-wetland areas; and to protect the “Proper Functioning Condition” of       watercourses, water bodies and riparian-wetland areas throughout the District of        Metchosin”

This is achieved through employing seven principles: maintain ecosystem integrity; sustainability (water resources should not be used beyond their capacity to be naturally replenished, both in quantity and quality); stewardship; accountability (the use of rainwater is a privilege); water quality; public awareness; and the protection of the rights of property owners. The Rainwater Protection and Management bylaw helps avoid changes in runoff patterns as a consequence of building homes, driveways, roads, logging, or land clearing. Metchosin’s “large lot” zoning is also critical to conserving this resource.

Issues:

  • The forecast of increasingly severe summer droughts is likely to negatively impact water bodies, from lakes to creeks to groundwater. Preserving the integrity of the natural water systems will increasingly be crucial to maintaining groundwater and surface water resources. Understanding the underlying groundwater system of Metchosin will help to protect this critically important resource;
  • 30% of Metchosin properties obtain their water supply from wells; dumping of toxic waste,mining, loss of tree cover and development can negatively impact groundwater supplies. Improperly functioning septic systems and overloaded agricultural systems can contribute to pollution of surface and groundwater systems;
  • Lack of provincial oversight, funding, and enforcement of riparian regulations;
  • Loss of trees can change the absorption of rain and the rate of runoff and lower the water table; logging is not a permitted use in most areas of the District;
  • Aggressive invasive species (purple loosestrife and yellow iris) can hasten the infill of wetlands and reduce their biodiversity and ability to respond to climate change;
  • Wetlands can be infilled for development or agricultural purposes, thereby negatively impacting the water table and surface waters.
  • The CRD watershed and reservoir can supply sufficient water to the CRD at this time. However, a continuing growth in population and water consumption will eventually tax the available supply and the peaks of demand create the need for more infrastructure that needs to be updated more often, need to balance times of demand;

Recommendations:

Water is fundamental to all living things and locally we must ensure the continued quantity and quality of our water supply. Metchosin has done much to ensure the protection of its surface waters with the Rainwater Protection and Management bylaw. Two of Metchosin’s lakes, Matheson and Blinkhorn, have no development around their shores, which protects their healthy aquatic and riparian ecosystems. The Bilston Creek Development Permit Area zoning reduces the impact of development on Bilston Creek. The following actions will further protect the District’s critically important water resources:

  1. Incorporate into the OCP recognition of the importance of sustaining our surface water, groundwater, and water table (i.e., aquatic systems) in order to provide safe, clean water for our needs while ensuring sufficient water for natural (ecological) systems;
  2. Develop a groundwater protection bylaw to protect groundwater quality and sustainability into the future;
  3. Consider control of aggressive introduced species that lead to rapid infill of wetlands (e.g. purple loosestrife and yellow iris);
  1. Encourage the restoration of wetlands;
  2. Encourage the orderly flow of piped water, to extend the life of the CRD water infrastructure as long as possible into the future;
  1. Promote rainwater harvest, xeriscaping, and efficient irrigation to conserve groundwater;
  2. Protect  groundwater and all bodies of water from pollution;
  3. Support changes to building and plumbing codes to permit  the reuse of greywater, for activities where it is deemed safe.
  4. Encourage farmers to improve agricultural irrigation water productivity (e.g. drip irrigation).

 GREEN AND BLUE SPACES

Context

Protected parks comprise 10.27% (698 hectares) of the district’s 6,942.78 ha; most of them are managed by the CRD (municipal-60 ha), 1070 ha of farmland are protected by British Columbia’s Agricultural Land Reserve (ALR), a further 70 ha are under the protection of conservation covenants.

Though not legally protected, the province’s Crown lands (618.36 ha) and the federal DND land holdings (1322.1 ha) further augment the natural landscape. DND lands have extraordinary ecological values, representing some of the rarest ecosystems and species within Canada and providing immense carbon sequestration abilities and carbon reservoirs. The municipal, regional, provincial and federal large green spaces comprise almost 55% of the district landbase. The district also holds 936.85 ha of water within its boundaries, including foreshore rights.

Metchosin’s natural areas are home to rare and threatened forested and non-forested ecosystems and species. The Garry oak ecosystem is one of the three rarest ecosystems in Canada. Forested ecosystems are critical components of a strategy that includes maintaining our carbon stores and the ability to sequester GHG emissions.

Many landowners cherish the wild creatures and landscape that surrounds them and might wish to place conservation covenants on their lands in order to protect them in perpetuity. Land trusts such as Habitat Acquisition Trust and The Land Conservancy can help residents place voluntary conservation covenants on their properties in order to protect the ecological values of natural areas. Covenants such as these are legally binding and are registered on the property title. However, landowners can still sell their properties if and when they wish. Many of these lands are forested, sequestering carbon and functioning as carbon reservoirs (sinks).

Issues:

  • Although 2040.26 ha of green space contained within provincial and federal lands are not subject to development at this time, they do not have any actual protected status; future senior governments could decide to open the lands for development. These unprotected green spaces are providing important ecosystem services (such a providing clean air and water), are sequestering carbon, and hold vast reservoirs of stored carbon;
  • Unprotected green spaces that are home to rare and threatened ecosystems and species can be negatively impacted by future development;
  • Some unprotected green and blue spaces that are being used for recreation might face future development.

Recommendations:

Metchosin is fortunate to have considerable intact natural areas. It is important to preserve unprotected green and blue spaces, in part to maintain the ecosystem services they provide. Ways to ensure this are:

  1. Lobby the provincial government to protect provincial Crown lands in Metchosin as parkland;
  2. Lobby the federal government to protect/preserve the ecological integrity and natural areas of the lands it owns (i.e., Mary Hill, Rocky Point, and Albert Head);
  3. Support efforts to protect areas identified in the 2011 Parks report (Report on Ecological Values of Potential Park Acquisitions), the OCP and the Blue/Green Spaces Strategy;
  4. Support residents and other organizations in their desire to protect the natural values of their properties through placing voluntary conservation covenants on their properties.AGRICULTURE

Context

A substantial land base in Metchosin is devoted to agriculture with 1070 hectares of land protected by the Agriculture Land Reserve (ALR). Metchosin agriculture is further protected and encouraged through the District’s Official Community Plan (OCP), its land use policies, and an Agriculture Advisory Select Committee reporting to Council. Metchosin’s support for  agriculture is also expressed through the District’s contribution of space on municipal land so that local producers can have easy access to local and regional consumers.

While the District does have an important voice in agriculture in Metchosin, much of the future of agriculture in Metchosin lies with senior levels of government and Crown Corporations such as the BC Assessment and the Agriculture Land Commission.

BC Assessment in 2008 recorded 82 properties being farmed in Metchosin’s ALR and another 70 outside the ALR. Metchosin farms tend to be small. Only a tiny minority of the approximately 150 farmers in Metchosin live without off-farm income.

Metchosin farmers grow a diverse range of products – from vegetables, fruits and root crops to poultry for eggs and meat, to sheep, cattle and pigs, and to flowers, shrubs and trees for landscaping purposes.

The lack of formal educational opportunities in agriculture on Vancouver Island is a constraint to local agriculture. To overcome this situation, Vancouver Island University is considering the establishment of an Agriculture Resource and Innovation Centre.

Issues:

While agriculture receives formal protection in Metchosin from both the ALR and the District of Metchosin, several issues threaten the long term viability of agriculture in the District. These include, among others:

  • Extremely high prices for the purchase of agricultural land;
  • Purchase of agricultural land for residential development and the removal of such lands from agricultural production;
  • Difficulties in acquiring long-term leases of agricultural land;
  • Lack of agricultural education and extension services;
  • Lack of secure processing opportunity, particularly with meats;
  • Climate change with warmer and wetter winters, hotter summers, less predictable weather, and more frequent extreme weather events will impact agriculture;
  • Increased likelihood of new diseases, insect pests, and invasive species arising from climate change and the increase in global travel;
  • Organic production can be contaminated from non-organic sources (neighbouring properties which use chemical fertilizers and pesticides);
  • Improper use of agricultural land;
  • Availability of sufficient water for agricultural production.

Recommendations:

Maintaining and expanding local agriculture is an important component of the strategy to enhance Metchosin’s ability to respond to the threat of a changing climate and dependence on off-Island food sources. The following actions will help protect the District’s agricultural potential:

  1. Support and enhance the Agricultural Land Commission ‘s mandate to preserve agricultural lands for agriculture;
  2. Maintain and, where possible, strengthen the protection of agricultural land, possibly through the adoption of an Agriculture Area Plan;
  3. Support efforts to improve public awareness of local agriculture and farmer access to local markets;
  4. Support sufficient vending opportunity in Metchosin and other area markets;
  5. Support programs  providing educational and extension services to new farmers, including workshop, demonstration, mentorship and other services;
  6. Support and encourage local abattoir capacity;
  7. Support and encourage local agricultural producers;
  8. Support the Peninsula Agriculture Commission as regional venue to protect and preserve agriculture in southern Vancouver Island;
  9. Support sustainable greenhouse capability;
  10. Support edge planning (buffering/hedgerows) around individual farms and around the ALR;
  11. Support initiatives to improve long term leasing opportunities for agriculture;
  12. Consider options for improving agricultural irrigation water productivity (eg drip irrigation);
  13. Encourage and support organic farming practices and ecological stewardship;
  14. Encourage the most efficient use of ground and surface water possible;
  15. Educate the public on the control of invasive and noxious weeds, such as Tansy ragwort, gorse and Scotch broom;
  16. Support initiatives for opportunities for small farmers to increase and diversify incomes through value-added products, agricultural services, and on-farm processing;
  17. Support Vancouver Island University’s proposed Agriculture Resource and Innovation Centre as a vehicle for the provision of education and extension services to Vancouver Island farmers.

 RECREATION

Context

Metchosin has many parks, trails and green spaces that provide recreational opportunities for its residents and the CRD in general. Many people use Witty’s Lagoon, Taylor Beach, Devonian Park, and Matheson and Blinkhorn Lake parks for swimming, sunbathing, hiking, and other recreational pursuits. The Galloping Goose Trail is used for cycling, horseback riding, hiking, and commuting. Sections 25, 28 and 95, provincial crown land parcels, are used primarily by their adjacent neighbourhoods for nature hikes and horseback riding. A network of non-roadside trails have been developed during the subdivision process that allow safe horseback and hiking opportunities, connecting neighbourhoods to neighbourhoods. In 2009 council approved the Trails Network Master Plan which provides direction to planners and council on development of priority trails. As well there is a municipal tennis court, bike jump park and cricket field.

The Metchosin School ground is used as a day camp in summer months, Westmont school has a playing field, Hans Helgeson school has a playground. The Community Hall is rented for exercise classes and a badminton club. Hans Helgeson and other schools have gymnasiums and raised theatre facilities that could potentially be accessed by community groups. All these amenities can help to reduce carbon emissions by providing recreational opportunities within Metchosin.

Despite all of the above, most of the facilities in Metchosin are under-used by Metchosin residents.

The district also contributes financially to the Westshore Parks and Recreation Society (WSPRS) facilities.

Issues:

  • Most children and parents leave the community and drive long distances to be involved in sporting activities;
  • Under-use of local recreational amenities.

Recommendations:

Metchosin residents have many opportunities to enjoy recreational activities at home instead of traveling to other municipalities. Some ways to increase these opportunities are:

  1. Encourage the use of Metchosin sports facilities by promoting more participation by Metchosin residents (e.g. cricket field, tennis court, riding rink and dirt jump park);
  2. Encourage partnerships with the YM/WCA-Camp Thunderbird, the Boys and Girls Club-Metchosin Wilderness Camp, local schools, Pearson College and other appropriate organizations, for expansion of the use of their facilities to Metchosin residents;
  3. Consider a partnership to develop an all-weather playing field and to promote the expanded use of the cricket field.

ENERGY and GREENHOUSE GAS EMISSIONS

By becoming a signatory to the Climate Action Charter, Metchosin has committed to the following goals:

  • being carbon neutral which respect to municipal operations by 2012;
  • measuring and reporting on the District’s GHG emissions; and
  • Metchosin specifically declared that we are not in favour of densifying, which is the impact of a complete, compact community.

The province prepared Community Energy and Emissions Inventories as a baseline to determine GHG emissions. Our total emissions for 2007 were measured at 23,395 tons/yr; of this total 84% was from transportation, 13.8% was from buildings and 2.2% from solid waste. The municipal staff and residents of Metchosin must work together to achieve these goals.

In the spring of 2010, the District updated the OCP by adding the following objective:

To mitigate detrimental impacts of climate change, and to reduce community      greenhouse gas emissions by 33% over 2007 levels by 2020.”

To address our commitments under the Climate Action Charter, Metchosin needs to reduce the amount of GHGs emitted, and increase (or at least maintain) the amount of GHGs that plants pull out of the air (sequester).

The three chapters in this section provide suggestions about how we might reduce GHG emissions from our three major contributors of GHG: transportation, buildings  and solid waste.

  1. TRANSPORTATION

Context

According to the province, motorized transportation is the largest source of greenhouse gas emissions in Metchosin. Any meaningful effort to reduce greenhouse gas emissions in Metchosin has no choice but to address transportation and the way people use their vehicles. Transport hits the core of our lifestyles. The geographic and infrastructure layout of Metchosin further compound a complex issue. There are no simple solutions.

Sustainable transportation refers to human behaviour, as well as the use of appropriate technology. The objective is to consider not only non-polluting and greener transport choices, regardless of means and technology used, but also individual and social encouragement to promote these choices.

Metchosin bylaws already allow home based businesses on all properties, which can reduce the carbon emissions that incur from commuting. According to the 2006 census data, 12.4% of Metchosin residents worked from home.

Electric vehicle use is emerging as an energy friendly alternative to conventional gas powered vehicles, especially for short commutes

The District supports regional planning on transportation that includes the use of light rail transit.

Issues:

  • Reluctance on the part of residents to use public transportation. Council has successfully worked with BC Transit in establishing a Park-and-Ride at St. Mary the Incarnation Anglican Church on Metchosin Rd, but use of the Park-and-Ride service is below expectations;
  • Lack of safe cycling and pedestrian infrastructure along roadways. In 2009 Metchosin completed a Trail Network Master Plan that identifies and prioritizes a future trail network for the district that can guide decisions made by future councils, so that the municipality may continue to develop pedestrian/bike/horse trails adjacent to municipal roads as they are built or being reconstructed. The primary purpose of such trails is to provide non-motorized commuting and recreational alternatives but due to the time frame to develop these this may not make a significant difference to our GHG emissions by 2020.
  • Lack of facilities to recharge electric vehicles;
  • Air pollution from idling vehicles. The worst mileage a vehicle can get is 0 miles per gallon, which occurs when it idles;
  • Municipal vehicles, which currently all use diesel or gas, and their carbon footprint.

Recommendations:

Transportation is cited as the leading cause of Metchosin’s green house gas (GHG) emissions.  In order to reduce the District’s GHG emissions, it is important to improve access to public transportation and to overcome the community’s reluctance to use it. The following actions will help:

  1. Continue to improve the availability of public transportation, bus shelters, secure bike storage, park & rides and carpooling by liaising with BC Transit and promote these travel options through public education;
  2. Continue to improve pedestrian and non-motorized corridors (trails) by constructing bike lanes and trails where applicable and when funding permits;
  3. Encourage and support a vehicle sharing co-op;
  4. Consider the environmental standards of any vehicle purchased by the municipality and make purchases that best support the municipal objectives and the environment;
  5. Review road design standards for municipal roads to ensure that they are in keeping with the character of the District, that they minimize environmental degradation and the potential for erosion, that they foster traffic safety and that they permit the safe and proper access for emergency and road maintenance vehicles;
  6. As technology and funding opportunities become available, facilitate the establishment of an electric vehicle recharging station in the village centre.
  1. BUILT STRUCTURES (including Residential)

Context

Canadians use more energy per person than all other countries in the world except for Iceland and Luxemburg – in fact, we use 2.5 times more energy per person than the average of all developed countries. In 1960, Canadians used 4251 Kg of oil equivalent per capita; by 2007 the amount had risen to 8169 kg per capita. By comparison residents of the United States used 5642 kg. and 7766 kg per capita, respectively, with U.S. consumption peaking in 1978 and decreasing steadily since. British Columbians used 0.24 TeraJoules of energy per person in 2003, a decline of 8% from the 1990 rate of 0.26 TJ. Canada at large is currently falling further behind the United States in terms of renewable energy, and energy efficiency initiatives. U.S. per capita expenditures are currently running at about 18:1, and 2:1, respectively, over those in Canada.

Sustainable and resilient building within Metchosin includes the actual structures, total energy and water use, total resource use, land use planning, ecological connectivity, affordable housing, demographics, community building, and education. All of these relate either directly or indirectly to GHG emissions, carbon use, and rising costs of fossil fuels.

All topics are intimately interconnected and must be considered as a whole rather than piecemeal. The human built environment impacts total green house gas emissions on several levels. There is scope to improve our energy and resource consumption patterns.

Metchosin has always been a leader in promoting and protecting the rural and natural values of the community. The District, with its innovative approach to maintaining these values and fiscal prudence, can continue to act as a highly effective catalyst in the quest to conserve energy and to reduce consumption.

Issues:

  • Climate change predictions forecast wetter winters and drier summers and more extreme weather events at greater frequency. New infrastructure and zoning will need to adapt to these challenges.
  • Development results in a loss of biodiversity and reduced carbon sequestration;
  • Some residents live in relatively large, energy inefficient houses and consume significant quantities of goods. After transportation, our energy and resource consumption is our 2nd largest source of carbon dioxide (CO2) emissions;
  • Some residents are not aware of their carbon footprint;
  • The manufacture and transport of building materials for built-up infrastructure increases the carbon footprint of the community;
  • The life cycle of a building usually results in an accumulating carbon footprint (heating, lighting and consumption);
  • Without public education and encouragement for residents to upgrade their homes, existing homes will continue to have a significant impact on GHG emissions;
  • Occasionally, senior governments offer incentives to reduce GHG emissions and replace energy inefficient devices and products (appendices 3,4); these incentives can be difficult to find, and the products difficult to assess;
  • The fast pace at which technologies are being developed often makes it difficult for District decision makers and homeowners to be aware of the most efficient and financially prudent choices for reducing GHG emissions;
  • Adoption of energy efficient technologies can be initially expensive and deter homeowners from implementing energy efficient strategies;
  • Current regulations for residential sewage systems and septic fields require flush toilets which account for 30% of domestic water consumption, loss of habitat, and loss of resources. Transport of septic wastes out of the community (from pump-outs) results in a further source of GHGs.
  • Agricultural land is a scarce and valuable resource, it is important to consider ways to reduce the footprint of buildings and non-food producing activities on agricultural lands.

Recommendations:

The District has committed to reducing GHG emissions over 2007 levels by 33% by 2020. Buildings account for 13.8% of emissions. The provincial government has authority over the building code. Lobbying the province for changes which will enable greener buildings will help reduce emissions. Additional ways to achieve this are:

  1. Consider land use decisions, as appropriate for Metchosin, based on changes in, and projections of, groundwater and aquifer levels, snow loads, extreme rain and droughts, greater storm surges along the shoreline. Revise snow load requirements, road drainage plans, floodplain and shoreline regulations and locally-adapted fire smart guidelines as needed;
  2. Continue to assess bridges, septic systems and new infrastructure in floodplains using 100-200 year flood projections;
  3. Lobby the province for changes to the Building Code that allow for greener building practices (e.g. greywater reuse systems, composting toilets);
  4. Require all new construction to have minimal environmental impact, including minimizing GHG emissions;
  5. Encourage policies promoting building methods that have minimal impact on ecosystems and landscape;
  6. Continue to encourage building practices that minimize or offset the loss of pervious surfaces (see District Rainwater Management bylaw);
  7. Allow other green building policies that can be demonstrated to meet the functions and safety objectives of the building code while protecting the interests of future owners, such as green roofs, night sky friendly lighting, etc.;
  8. Post a personal carbon footprint calculator on the District website;
  9. Post information on the District website about the latest technological innovations on energy use reduction strategies (e.g., see appendix 5);
  10. Post government sponsored homeowner initiatives for carbon footprint and energy use reduction on the district website with links to Energy Canada (http://oee.nrcan.gc.ca/english/), LiveSmart BC (http://www.livesmartbc.ca/), BC Hydro (http://www.bchydro.com/), and BC Sustainable Living (http://www.bcsea.org/solutions) websites (see appendices 3, 4);
  11. Investigate ways in which the District might help residents with renewable energy installations and energy efficiency improvements costs, and consider the concept of Local Improvement Charges;
  12. Provide education on, and encourage, building upgrades regarding energy and water use, such as low flush or composting toilets, energy and water efficient appliances, rainwater storage, green roof, low emission windows, heat recovery systems including ground loop energy systems and solar electric and solar thermal energy systems;
  13. Encourage building new structures to have net zero energy and water impact;
  14. Encourage home energy audits, a first step to help inform home and business owners on their options when considering energy efficiency upgrades (such as sealing window and door drafts);
  15. Develop relevant plans regarding emergency management to take into account increased forest fire risk, flooding, and wind, rain and snow storms;
  16. Consider methods to reduce the footprint of buildings and non-food producing activities on agricultural land (eg encourage compact homes, shops, barns) and that the house, accessory building(s) and storage (parking) footprint does not affect agricultural production and viability.
  1. SOLID WASTE

Context

Metchosin is, for the most part, a residential and agricultural community. Commercial and industrial land uses are small enough not to detract from the overall character of the District.

All developed properties in Metchosin have septic systems to accommodate liquid waste. Septic systems are effective in treating liquid waste when they are designed, installed, and maintained properly. However, it is estimated that 20% of systems in the CRD are failing. Failing septic systems result in significant public health risks and environmental degradation. Specifically, they cause contamination of groundwater and local streams, rivers, and lakes, as well as contamination of shellfish beds and the nutrient enrichment of sensitive water bodies. Contamination of groundwater is a serious issue in Metchosin because approximately 60% of residents draw their drinking water from wells.

Under the Provincial Sewerage System Regulation, owners of systems installed after May 31, 2005 are required to follow their prescribed maintenance plan and keep all records of maintenance. Where Building Permits are required (i.e., new construction), septic designs are routinely submitted to the District as a requirement of the Building Permit process and no Occupancy Permit is issued without a properly submitted and approved septic system design.

Solid wastes may be transported by a commercial contractor or in person to the CRD’s Hartland landfill site. The Hartland landfill site is filling, however, and to extend the life of the site, the CRD, together with member municipalities, is developing programs to divert solid wastes away from landfill and into other recycle streams. For example, Hartland no longer accepts waste construction materials. Some residents find disposal options too onerous and dispose of garbage and furniture, for example, adjacent to road sides.

The District finances a blue box program to collect paper, cardboard, metals, and some plastics for recycling. Some residents compost kitchen waste, but some store kitchen waste in receptacles that attract bears. Some residents burn wastes. Some private organizations take some electronic goods for recycling. Many residents use a combination of all of these disposal methods. The District has recently become part of a provincially-sponsored program to collect batteries and cell phones.

The District allows open burning and incinerators from October through April, if weather conditions permit.

Issues:

  • Waste management issues reflect the spectrum of waste disposal methods available to Metchosin residents;
  • Septic systems no longer operating effectively, or too small to accommodate demand, may contaminate surface and groundwater sources;
  • Increasing constraints on regional landfill mean more and more waste will not be accepted for disposal at the Hartland Landfill site;
  • While composting alternatives are used by some residents, composting alternatives are poorly understood by some residents and are therefore not used or not used correctly;
  • Garbage and items such as used furniture and mattresses are from time to time disposed of by depositing them along road sides or on private property;
  • Burning of household garbage contravenes bylaws but is nonetheless adopted as an effective means of disposing of some garbage;
  • Storage of household waste in garbage receptacles that entice bears into residential neighbourhoods and account for approximately 60% of complaints about bears. Bears adapted to residential foraging may present major safety issues;
  • Metchosin allows open fires throughout most of the fall, winter and into the spring. Burning releases carbon into the atmosphere and the particulate matter released can adversely affect the health of people with respiratory sensitivities.

Recommendations:

Metchosin residents are responsible for the disposal of septic wastes. The CRD has a well used recycling system in place, which is continually undergoing innovative change. Further suggestions for the District are:

  1. Encourage the use of techniques which separate greywater from other sources of liquid waste so that greywater can be stored and used for irrigation (excluding irrigation of crops for human consumption);
  2. Lobby for changes to building and plumbing codes to permit the reuse of greywater and composting toilets;
  3. Encourage residents to maintain their septic systems to proper functioning condition and make information about proper septic system construction and maintenance available to Metchosin residents;
  4. Consider the development of a municipal compost yard;
  5. Encourage residents to adopt practices to contain household and kitchen garbage in secure, bear-proof receptacles.

APPENDIX 1: Metchosin’s Community Energy and Greenhouse Gas Emissions Inventory: 2007

Appendix 2: Mitigating and Adapting to Climate Change through the Conservation of Nature

Appendix 3: Examples of Canadian Grant Initiatives

  1. Canadian Mortgage and Housing Corporation (CMHC) has added environmentally friendly features to the Mortgage Loan Insurance it offers. If the homeowner uses CMHC insured financing to buy an energy-efficient home, purchase a house and make energy-saving renovations, or renovate an existing home to make it more energy-efficient, a 10% refund on the Mortgage Loan Insurance premium may be available.  Homeowners may also have the added flexibility of an extended amortization (up to a maximum of 35 years) without a premium surcharge.
  1. The BC government re-opened the LiveSmart BC home energy rebate program for new participants starting April 1, 2010.  This program grants BC homeowners rebates of up to $5,000 and more for home energy improvements. To qualify a home energy audit is required before the upgrade begins.

3.     Financial Institution Initiatives

1.o   RBC Energy Saver™ Loan – Make a qualifying environmentally-friendly purchase and receive a 1% discount or a $100 home energy audit rebate on a fixed rate installment loan over $5,000

2.             http://www.rbcroyalbank.com/products/personalloans/energy-saver-loan.html

o   VanCity Bright Ideas home financing. This personal loan is at prime+1 rate for up to ten years. The low interest rate saves money compared to a conventional loan. Borrow as little as $3,500 or a maximum of $20,000. Pay it back with regular monthly payments.

3.             https://www.vancity.com/Loans/BrightIdeas/

Appendix 4: Examples of Federal support for Home Retrofits October 2010

4.              Eligible Improvements / Retrofits

 

HEATING SYSTEM Grant Amounts
Single-Family Home Multi-unit residential buildings (MURB)
1st system 2nd system
Install an earth-energy system (ground or water source) that is compliant with CAN/CSA-C448 and certified by the Canadian GeoExchange Coalition (www.geo-exchange.ca) – applies to a new system or a complete replacement. $4,375 N/A
Replace a heat pump unit of an existing earth-energy system (ground or water source). The system must be compliant with CAN/CSA-C448 and certified by the Canadian GeoExchange Coalition (www.geo-exchange.ca). (*per equipment replaced) $1,750 N/A *1,750
Replace an existing space and domestic water heating equipment with an integrated mechanical system (IMS) that has an overall thermal performance factor of 0.90 or higher. The system must be compliant with the CSA P.10-07 standard and meet or exceed the standard’s premium performance requirements. (*per equipment replaced) $1,625 N/A *1,625

 

Appendix 5: Currently Viable Energy Initiatives

 

 

Solar Hot Water Systems

 

With a good southern exposure and adequate space for a solar storage tank, a solar water heater will pay for itself in energy savings in 5 to 15 years under average energy costs, with a return on investment of 8-14%. It will provide 75 to 100% of summer hot water needs and 10 to 20% of residential hot water demand in winter (40-60% over-all). These cost estimates do not include the cost of the backup heat supply system. In many cases, existing water heating systems can be converted from primary to solar back-up but sometimes a different back-up heating system is advised.

 

5.               

6.               

 

7.               

8.               

9.              Geothermal Heating Systems

10.           How Geothermal Heating Works

A geothermal heat pump moves heat into or out of the earth to heat or cool your home. The system has three main components:

  1. Ground loop system
  2. Heat pump furnace unit
  3. Distribution system

REFERENCES

Murdock, T. 2009. Climate model projections and anticipated impacts for Southern Vancouver Island. Pacific Climate Impacts Consortium. and University of Victoria.

www.pcic.uvic.ca/docs/presentations/Murdock.CRD.19Nov09.pdf

Penn, Briony. 2010. Conservation offsets. A Revenue toll to conserve natural areas, watersheds and community resilience. Land Trust Alliance, British Columbia.

Pidgeon, Emily. 2009. Carbon sequestration by coastal marine habitats: Important missing sinks. The Management of Natural Coastal Carbon Sinks. IUCN.

Resilience Alliance. 2009. Assessing and managing resilience in social-ecological systems: A practitioner’s workbook, Version 1.0. [online] URL: http://wiki.resalliance.org/index.php/Main_Page.

Trofymow, J.A., G. Stinson, and W. Kurz. 2008. Derivation of a spatially explicit 86-year retrospective carbon budget for a landscape undergoing conversion from old-growth to managed forests on Vancouver Island, BC. Forest Ecology and Management 256: 1677-1691.

FURTHER MATERIAL

Access Energy Simulation and Software Tools (free-of-charge)

http://canmetenergy-canmetenergie.nrcan-rncan.gc.ca/eng/software_tools.html

Affordable Warmth BC.

http://www.affordablewarmth.ca/financing-energy-efficiency-upgrades-affordable-housing#greenmortgages

BC Energy Plan: A Vision for Clean Energy Leadership http://www.energyplan.gov.bc.ca/backgrounder/backgrounder2.htm

Canada Energy Profile: U.S. Energy Information Administration. Independent Statistics and Analysis

http://tonto.eia.doe.gov/country/country_energy_data.cfm?fips=CA

Canada falling even further behind the U.S. in sustainable energy investments per capita http://pubs.pembina.org/reports/110310-renewables-efficiency-usa-vs-canada-2010.pdf

Canada Mortgage and Housing Corporation; Energy-Efficient Housing Made More Affordable with Mortgage Loan Insurance.

http://www.cmhc.ca/en/co/moloin/moloin_008.cfm

Enviroharvest – Solar Hot Water:

http://www.enviroharvest.ca/open-loop.htm

Home Performance; Home Energy Audit

http://www.homeperformance.com/energy-audit-home-eco-energy-auditors-ontario-bc-canada

Integration of Renewable Energy on Farms

http://www.farm-energy.ca/IReF/index.php?page=sdhw-ataglance

Keith, Heather, B. G Mackey, and D. B Lindenmayer. Re-evaluation of forest biomass carbon stocks and lessons from the world’s most carbon-dense forests. PNAS July 14, 2009 vol. 106 no. 28

Read more: http://news.mongabay.com/2009/0717-forest_carbon.html#ixzz137dqX5JO

Live Smart BC. – http://www.livesmartbc.ca/homes/h_rebates.html

/E:/Users/Bhall/AppData/Local/Microsoft/Windows/Temporary Internet Files/Content.Outlook/Documents and Settings/jmacpherson.WS04/Local Settings/Temporary Internet Files/Content.IE5/Y1DZXAQS/%E2%80%A2%09Live Smart BC.  http:/-www.livesmartbc.ca-homes-h_rebates.html)

Local Improvement Charges, Oshawa, Ontario

http://www.oshawa.ca/mun_res/roads/loc_imp.asp

Engineering Services 9th Floor, City Hall 50 Centre Street South, Oshawa, Ontario, L1H 3Z7

Natural Resources Canada

http://oee.nrcan.gc.ca/residential/personal/retrofit-homes/retrofit-qualify-grant.cfm

Net Zero Housing (NZE)

http://canmetenergy-canmetenergie.nrcan-rncan.gc.ca/eng/buildings_communities/housing/netzero_housing.html

Official Community Plan, 1995. http://www.district.metchosin.bc.ca/siteengine/activepage.asp?PageID=33

RBC Energy Saver™ Loan http://www.rbcroyalbank.com/products/personalloans/energy-saver-loan.html

Using Local Improvement Charges to Finance Energy Efficiency Improvements: Applicability Across Canada

http://www.pembina.org/pub/197

11.           VanCity Bright Ideas – https://www.vancity.com/Loans/BrightIdeas/

Wilson, Sara, J. and R. J. Hebda, 2008. Mitigating and Adapting to Climate Change through the Conservation of Nature in British Columbia.

World Resource Institute, International Energy Agency (IEA) 2005 data,

http://earthtrends.wri.org/searchable_db/index.php?theme=6&variable_ID=351&action=select_countries

Projected Sea Level Changes for British Columbia in the 21st Century

This federal Govt. report from December 2008 was based on a report by R.E. Thomson, B.D., Bornhold and S. Mazzotti,

“An Examination of the Factors Affecting Relative and Absolute Sea Level in British Columbia”  Canadian Technical Report of Hydrography and Ocean Sciences 260, Fisheries and Oceans Canada (2008); both of these reports are a result of a joint project between Fisheries and Oceans Canada, Natural Resources Canada and the Province of British Columbia.

For the complete document, see:

http://www.env.gov.bc.ca/cas/pdfs/sea-level-changes-08.pdf

Summary

globalsealevelThe 21st century is expected to witness a continued rise in global average sea level as a result of the melting of continental glaciers and ice caps, and warming (expansion) of the upper ocean. At the regional scale, sea level will change in response to these global effects, as well as local effects, including ocean and weather conditions and
vertical movements of the land due to geological processes. Consequently, the expected changes in sea level for the British Columbia coast will differ from the global projections; they will not be uniform. For instance, estimates of most probable sea level rise range from 11 cm at Nanaimo to more than 50 cm in parts of the Fraser River delta. Because of the many uncertainties in measuring past sea level
changes and predicting future sea levels, the possible range could be much greater. Applying a possible, but extreme, global rise rate, sea level could rise 80 cm for Nanaimo and 120 cm for the Fraser River delta by 2100.
The anticipated changes in sea level could have significant consequences for areas currently protected by dikes (such as the Fraser and Squamish deltas), where coastal erosion is already an issue (eastern Graham Island, Haida Gwaii), or where development and harbour infrastructure is close to present high tide limits.
Of particular concern will be extreme weather events, such as storm surges, occurring at the same time as these high sea levels. These extreme events can add as much
as one metre to sea levels, regardless of local shoreline features and waves.

This report summarizes the current scientific knowledge on projected sea level changes as it applies to B.C. during the 21st century to inform decision-making and planning by coastal communities and other authorities. It is a summary of a technical report entitled “An Examination of the Factors Affecting Relative and Absolute Sea Level in Coastal British Columbia” by R.E. Thomson, B.D. Bornhold and S. Mazzotti
(2008) in conjunction with Fisheries and Oceans Canada and Natural Resources Canada.