Category Archives: Tools

Ecology for Transformation

David Zaks and Chad Monfreda write on Worldchanging on Steve Carpenter and Carl Folke‘s 2006 paper in Ecology for Transformation (doi.org/10.1016/j.tree.2006.02.007):

Ecology has long been a descriptive science with real but limited links to the policy community. A new science of ecology, however, is emerging to forge the collaborations with social scientists and decision makers needed for a bright green future. Stephen Carpenter and Carl Folke outline a vision for the future of ecology in their recent article, Ecology for Transformation. You need a subscription to access the full article, so we’ll quote them at length:

“Scenarios with positive visions are quite different from projections of environmental disaster. Doom-and-gloom predictions are sometimes needed, and they might sell newspapers, but they do little to inspire people or to evoke proactive forward-looking steps toward a better world. Transformation requires evocative visions of better worlds to compare and evaluate the diverse alternatives available to us … Although we cannot predict the future, we have much to decide. Better decisions start from better visions, and such visions need ecological perspectives.”

Ecology for Transformation offers the perspective of resilient social-ecological systems. Simply put, it recognizes that ecosystems and human society are interdependent, and that they need the capacity to withstand and adapt to an increasingly bumpy future.

Examples of resilient social-ecological systems abound in all kinds of notoriously difficult to manage areas, like natural disaster response and rangeland management. Resilience sounds great, but how do we get there? Fortunately Carpenter and Folke offer a theoretically robust three-part transformative framework:

1. Diversity
2. Environmentally sound technology
3. Adaptive governance

Diversity constitutes the raw material we can draw from to create effective technologies and institutions. It reflects the wealth of genetic and memetic resources at our disposal, in the form of biodiversity, landscapes, cultures, ideas, and economic livelihoods. We need to foster diversity as an insurance package for hard times because…

“…crisis can create opportunities for reorganizing the relationships of society to ecosystems. At such times, barriers to action might break down, if only for a short time, and new approaches have a chance to change the direction of ecosystem management. To succeed, a particular approach or vision must be well-formed by the time the crisis arises, because the opportunity for change might be short-lived.”

Environmentally sound technology ranges from incremental advancements in energy efficiency to innovative economic tools like natural capital valuation and markets for ecosystem services. Diversity and technology should sound familiar enough to WorldChanging readers. Ecology for transformation, however, goes on, to challenge us to engage in adaptive governance that recognizes the reality of constant change. The authors define adaptive governance as:

“Institutional and political frameworks designed to adapt to changing relationships between society and ecosystems in ways that sustain ecosystem services; expands the focus from adaptive management of ecosystems to address the broader social contexts that enable ecosystem based management.”

Governance is much broader than what we normally think of as government and encompasses all of the actors who shape the way we work, live, and interact. Communication across various scales, from individuals to institutions, is vital for effective governance. Many of the management and governance structures currently in place are static, but an ‘adaptive’ approach promises more sustainable outcomes by negotiating uncertainty and change.

Steve Carpenter, WA Brock, and I addressed the issue of how scientists can encourage transformations by creating new management models in our 2003 paper Uncertainty and the management of multistate ecosystems: an apparently rational route to collapse (Ecology. 84(6) 1403-1411). We wrote:

…scientists can contribute to broadening the worldview of ecosystem management in at least three ways.

(1) Scientists can point out that uncertainty is a property of the set of models under consideration. This set of models is a mental construct (even if it depends in part on prior observation of the ecosystem). It therefore depends on attitudes and beliefs that are unrelated to putatively objective information about the ecosystem. Despite this discomforting aspect of uncertainty, it cannot be ignored.

(2) Scientists can help to imagine novel models for how the system might change in the future. There will be cases where such novel models carry non-negligible weight in decision, for example when the costs of collapse are high. The consequences of candidate policies can be examined under models with very different implications for ecosystem behavior. Such explorations of the robustness of policies can be carried out when model uncertainty is quite high or even unknown, for example in scenario analysis.

(3) Scientists can point out the value of safe, informative experiments to test models beyond the range of available data. In the model presented here, fossilization of beliefs follows from fixation on policies that do not reveal the full dynamic potential of the ecosystem, leading to the underestimation of model uncertainty. Experimentation at scales appropriate for testing alternative models for ecosystem behavior is one way out the trap. Of course, largescale experiments on ecosystems that support human well being must be approached with caution. Nevertheless, in situations where surprising and unfavorable ecosystem dynamics are possible, it may be valuable to experiment with innovative practices that could reinforce desirable ecosystem states.

I think our second point, the need for creative synthesis, is not emphasized enough in science, which tends to focus on testing existing models. Ecological governance needs new ways of thinking about nature that are useful in governance situations. The creation of novel, practical models is a vital part of connecting science to policy and action. Without practical models, people are unable to develop desirable policy or effective actions.

Mapping global soil degradation

UNEP global map of soil degradation

UNEP provides access to a number of global environmental datasets via the GEO data portal. For example, the Global Assessment of Human Induced Soil Degradation data base was created in 1990 by ISRIC. The database contains information on soil degradation within map units reported by a survey of soil experts from around the world. It includes the type, degree, extent, cause and rate of soil degradation.
The main causes of degradation are (in order) overgrazing, deforestation, and agricultural mismanagement. Each of these is responsible for a bit less than a third of total degraded area. Other causes of degradation make up less than 8% of the total degraded area. Deforestation dominates in Asia, while overgrazing is the main driver in Africa and Australia.
For details of assessment see:

Oldeman LR, Hakkeling RTA and Sombroek WG 1991. World Map of the Status of Human-Induced Soil Degradation: An explanatory Note (rev. ed.), UNEP and ISRIC, Wageningen pdf

ATEAM: Modelling ecosystem services

Worldchanging guest writers David Zaks and Chad Monfreda, from Center for Sustainability and the Global Environment at the U of Wisconsin, have a post ATEAM: Mr.T takes on ecosystems services on a project to model ecosystem services in Europe.

The ATEAM (Advanced Terrestrial Ecosystem Analysis and Modeling) project (also here and here) is not made up of rogue soldiers of fortune, but academics in Europe. The scientific assessment correlates changes in human well-being with future changes in climate and land-use. Researchers combined global climate models and land-use scenarios using innovative interdisciplinary methods to show how ecosystem goods and services are likely to change through the 21st century in Europe. ATEAM paints a mixed picture of the continent divided into a vulnerable south and adaptive north. The results are freely available online as a downloadable (PC only) mapping tool that displays the vulnerability of six key sectors: agriculture, forestry, carbon storage and energy, water and biodiversity.Stakeholder input helped to quantify regional adaptive capacity, while climate and land-use models estimated potential impacts. Adaptive capacity and potential impacts together define the overall vulnerability of individual ecosystem services. Even when ‘potential impacts’ are fixed, differential vulnerability across Europe indicates an opportunity to boost ‘adaptive capacity’. Emphasis on adaptation certainly doesn’t condone inaction on climate change and environmental degradation. Rather it stresses resilience in a world that must prepare for surprise threats that are increasingly the norm.

ATEAM is a wonderful example of sustainability science that lets people imagine the possible futures being shaped through decisions taken today. Integrated assessments like ATEAM and the MA (also here) have a huge potential to create a sustainable biosphere by offering solutions that are at once technical and social. Combined with many ideas that WC readers are already familiar with—planetary extension of real-time monitoring networks, open source scenario building, and pervasive citizen participation—the next generation of assessments could help tip the meaning of ‘global change’ from gloomy to bright green.

Adaptive environmental assessment and management: course reading evaluation

At the end of my adaptive management course at McGill I asked my students evaluate the course readings and suggest which three I should keep and which three I should cut. There was substantial agreement on what to keep, but more disagreement on what to cut.

Keep 

A favourite reading for over half the class was:

The students liked this chapter because it was a real world case from the point of view of an individual that was also well connected to theory.

Students also really liked the Holling readings. Both the summary of the book Panarchy

  • CS Holling. 2001. Understanding the complexity of economic, ecological and social systems. Ecosystems 4: 390–405.

and the pathology of resource management.

  • CS Holling, and G. K. Meffe. 1996. Command and Control and the Pathology of Natural Resource Management. Conservation Biology 10(2): 328-37.

The next favourite was controversial

This paper was popular with about a third of the class but an equal number thought it was one of the readings that should be cut.

Other readings that got more than one vote were readings from Kai Lee’s book, Carl Walters’ book, my scenario planning paper, and the Fazey learning article.

Cut 

The paper most recommended to be cut was:

Students thought it didn’t add a lot to the course. While some students thought it was one of the best papers, more than three times more thought it should be cut than kept.

The second recommendation for cutting was

Students found this paper too technical (I don’t think it is). This rating probably indicates that I need to rework how I discuss about bayesian statistics, learning and experimental design in the class.

The third least popular paper was the Olsson et al paper . mentioned above.
The excerpts from Kai Lee’s book were the only other readings to have more than two recommendations for removal, however an equal number of students thought they were some of the best readings.
Reading Revisions 

What I plan to do reduce the number of core readings, add some supplementary readings, and rethink the quantitative part of the course – I think I need some good in class excercises and homework assignments on bayesian stats and experimental design.  But, I might change my mind after I read the reports from their adaptive management projects.

MA: Putting a Price Tag on the Planet

Putting a Price Tag on the Planet is a long article by Lila Guterman on the Millennium Ecosystem Assessment in the April 7, 2006 The Chronicle of Higher Education. The article describes the history, funding, and operation of the MA as well as its findings.

As the 20th century drew to a close, leaders in the field of ecology decided they were failing at one of their primary goals. They had presented sign after sign that people were harming the environment — killing off species, destroying rain forests, polluting the air and water — but the warnings had little effect. So, to encourage conservation, they decided to appeal to humanity’s baser instincts.

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Tomorrow’s frontier – the wreckage of the unsustainable past

In Metropolis magazine, Bruce Sterling writes about his time as a Visionary in Residence at Art Center College of Design, in Pasadena, California.

It doesn’t take visionary genius to spot tomorrow’s frontier. It’s not the virgin sod of the American West because there isn’t any now. Tomorrow’s frontier is the wreckage of the unsustainable past. There is no place for us to start over clean, except through cleaning what no longer works. And that frontier is colossal because so little is working. I’ll put on my visionary hat for one last time and predict: you’ll know it’s working when you see the rust bloom.

link

Wetland Mitigation Banking Shortchanges Urban Areas

In a study highlighted in the National Wetlands Newsletter, J.B. Ruhl and James Salzman show that wetland mitigation banking redistributes wetlands from urban areas to rural ones, leaving urban residents with less access to important ecological services provided by wetlands, such as water filtration, erosion protection, and flood control.

Ruhl, J.B. and Salzman, James E., “The Effects of Wetland Mitigation Banking on People” (January 2006). FSU College of Law, Public Law Research Paper No. 179 Available at SSRN).

Wetland mitigation banking is used to ensure no net loss of wetland area under Section 404 of the Clean Water Act. Basically, mitigation banking allows developers who damage or destroy wetlands to buy off-site wetlands as compensation. Many studies have examined whether the new wetlands adequately replace wetland values and functions, but few have examined the social impacts of wetland mitigation banking.

Ruhl and Salzman studied 24 wetland mitigation banks in Florida (accounting for 95% of bank activity, and representing over 900 development projects). They show that in 19 of 24 banks, wetlands “migrated” from urban to rural areas.

“The whole point of wetland mitigation banking – what makes its economic incentives work – is that developers get to wipe out wetland patches in the higher priced land markets and bankers get to establish wetlands banks in the less pricey land markets,” Ruhl said. “It’s not surprising then that development projects using wetland mitigation banking often are located in urban areas and the banks they use are located in rural areas.”

The populations of winners and losers in wetland mitigation banking are quite different, as you might expect. The banks (where wetlands are restored) are, on average 10 miles from the projects (where wetlands are damanged). The average income was nearly $12,000 lower in projects compared to banks, and the average minority population was 13% higher projects.

The researchers suggest that further examination of wetlands mitigation banking is needed. ” … wetland mitigation banking has been touted as a “win-win” program, but unless someone keeps score we really can’t know whether it truly fits that billing.” For now, it seems that not actively including the value of ecosystem services means inadequately assessing the true costs and benefits of the program.

Ruhl is the Matthew and Hawkins Professor of Property at the FSU College of Law, and Salzman is a professor at the Duke University School of Law and the Nicholas School of the Environment.

Survey of Initial Impacts of Millennium Ecosystem Assessment

The Millennium Ecosystem Assessment‘s general synthesis report was released about a year ago. On March 21 2006, the MA released an assessment of the initial impact of the MA. The report is written by Walt Reid, the director of the MA, based upon a survey of (report pdf). The survey found that some organizations and countries have been significantly influenced by the MA while others have not been minimally if at all. In the report’s executive summary Walt Reid assess the impact of the MA on its multiple target audiences:

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Mapping Sea Level Rise

Sea Level Rise Jonathan Overpeck and others have a paper Paleoclimatic Evidence for Future Ice-Sheet Instability and Rapid Sea-Level Rise in Science (24 March 2006) that suggests that sea level rise due to anthropogenic climate change could occur much faster than people have previously expected. Possibly an increase of 5 to 10 m of several centuries. (For news articles see BBC, NYTimes, & Toronto G&M).

To visualize the consquences of sea level rise:

WorldChanging points to Flood Maps. A site that mashes up NASA elevation data with Google Maps, and offers a visualization of the effects of a single meter increase all the way to a 14 meter rise. Some examples are: Vancouver with 6m sea rise, New Orleans, and the Netherlands.

Also, Jonathan Overpeck‘s lab also has a visualization of the consquences of sea level rise for the US and the world.

Richard Kerr writes in a news article in Science, A Worrying Trend of Less Ice, Higher Seas:

The ice sheet problem today very much resembles the ozone problem of the early 1980s, before researchers recognized the Antarctic ozone hole, Oppenheimer and Alley have written. The stakes are high in both cases, and the uncertainties are large. Chemists had shown that chlorine gas would, in theory, destroy ozone, but no ozone destruction had yet been seen in the atmosphere. While the magnitude of the problem remained uncertain, only a few countries restricted the use of chlorofluorocarbons, mainly by banning their use in aerosol sprays.

But then the ozone hole showed up, and scientists soon realized a second, far more powerful loss mechanism was operating in the stratosphere; the solid surfaces of ice cloud particles were accelerating the destruction of ozone by chlorine. Far more drastic measures than banning aerosols would be required to handle the problem.

Now glaciologists have a second mechanism for the loss of ice: accelerated flow of the ice itself, not just its meltwater, to the sea. “In the end, ice dynamics is going to win out” over simple, slower melting, says Bindschadler. Is glacier acceleration the ozone hole of sea level rise? No one knows. No one knows whether the exceptionally strong warmings around the ice will continue apace, whether the ice accelerations of recent years will slow as the ice sheets adjust to the new warmth, or whether more glaciers will fall prey to the warmth. No one knows, yet.