All posts by Garry Peterson

Prof. of Environmental science at Stockholm Resilience Centre at Stockholm University in Sweden.
General

Banana Political Ecology

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Bananas are one of the world’s main food crops (4th in economic value) with over 100 million tons being produced per year, most of these bananas are a consumed in the tropics, but 15% are exported and are key exports of many poor countries. Daniel Kurtz-Phelan in the New York Times Book Review on Peter Chapman‘s book Bananas: How the United Fruit Company Shaped the World:

For much of the 20th century, the American banana company United Fruit dominated portions of almost a dozen countries in the Western Hemisphere. It was, Peter Chapman writes in “Bananas,” his breezy but insightful history of the company, “more powerful than many nation states … a law unto itself and accustomed to regarding the republics as its private fiefdom.” United Fruit essentially invented not only “the concept and reality of the banana republic,” but also, as Chapman shows, the concept and reality of the modern banana. “If it weren’t for United Fruit,” he observes, “the banana would never have emerged from the dark, then arrived in such quantities as to bring prices that made it available to all.”…

Throughout all of this, United Fruit defined the modern multinational corporation at its most effective — and, as it turned out, its most pernicious. At home, it cultivated clubby ties with those in power and helped pioneer the modern arts of public relations and marketing. (After a midcentury makeover by the “father of public relations,” Edward Bernays, the company started pushing a cartoon character named Señorita Chiquita Banana.) Abroad, it coddled dictators while using a mix of paternalism and violence to control its workers. “As for repressive regimes, they were United Fruit’s best friends, with coups d’état among its specialties,” Chapman writes. “United Fruit had possibly launched more exercises in ‘regime change’ on the banana’s behalf than had even been carried out in the name of oil.”

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Ecosystem services, Regime Shifts

Coral Reefs in the Anthropocene

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Plos OneIn a commentary Shifting Baselines, Local Impacts, and Global Change on Coral Reefs in PLoS Biology coral reef ecologists Nancy Knowlton and Jeremy Jackson write:

Imagine trying to understand the ecology of tropical rainforests by studying environmental changes and interactions among the surviving plants and animals on a vast cattle ranch in the center of a deforested Amazon, without any basic data on how the forest worked before it was cleared and burned. The soil would be baked dry or eroded away and the amount of rainfall would be greatly decreased. Most of the fantastic biodiversity would be gone. The trees would be replaced by grasses or soybeans, the major grazers would be leaf-cutter ants and cattle, and the major predators would be insects, rodents, and hawks. Ecologists could do experiments on the importance of cattle for the maintenance of plant species diversity, but the results would be meaningless for understanding the rainforest that used to be or how to restore it in the future.

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This lack of a baseline for pristine marine ecosystems is particularly acute for coral reefs, the so-called rainforests of the sea, which are the most diverse marine ecosystems and among the most threatened [4–8]. Most of the world’s tropical coastal oceans are so heavily degraded locally that “pristine” reefs are essentially gone, even if one ignores changes associated with already rising temperatures and acidity [3]. Most modern (post-SCUBA) ecological studies have focused on reef ecosystems that are moderately to severely degraded, and we have a much better understanding of transitions between human-dominated and collapsed reefs than between human-dominated and quasi-pristine reefs.

Knowlton and Jackson’s essay is a comment on an article in PLoS One Baselines and Degradation of Coral Reefs in the Northern Line Islands by Stuart Sandin and others that describes a large scale marine community assessment across a gradient of human dominated to relatively little impacted reefs in the Pacific. The study found that large predatory fish and reef-building organisms dominated the reefs around unpopulated islands, but around populated islands the reefs were dominated by small planktivorous fishes and fleshy algae. The reefs around populated islands exhibited more coral disease and less coral recruitment, suggesting that protection from overfishing and pollution may increase the resilience of coral reefs. The authors write:

Thus, local protection from overfishing and pollution may enhance ecosystem resilience to warm episodes and coral bleaching that result from global warming. To test this we need to determine how do coral recruitment, growth, and survivorship respond to changes in local community structure due to fishing, and how do these responses interact with episodes of warming measured by DHW. We also need to determine how fish productivity, i.e., the key currency of fisheries management, varies with changes in food web structure such as those observed between Kingman and Kiritimati. The only way to answer these questions is by investigation of reefs like the northern Line Islands that have remained remarkably intact in comparison to the global norm. They are among the only baselines that remain.

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Ecological Economics, Networks, Regime Shifts

Ecology for bankers

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In Feb 21 2008 Nature, ecologists Robert May, Simon Levin, and George Sugihara write about how ecological thinking can be used to illuminate financial dynamics in their commentary Complex systems: Ecology for bankers:

‘Tipping points’, ‘thresholds and breakpoints’, ‘regime shifts’ — all are terms that describe the flip of a complex dynamical system from one state to another. For banking and other financial institutions, the Wall Street Crash of 1929 and the Great Depression epitomize such an event. These days, the increasingly complicated and globally interlinked financial markets are no less immune to such system-wide (systemic) threats. Who knows, for instance, how the present concern over sub-prime loans will pan out?

Well before this recent crisis emerged, the US National Academies/National Research Council and the Federal Reserve Bank of New York collaborated on an initiative to “stimulate fresh thinking on systemic risk”. The main event was a high-level conference held in May 2006, which brought together experts from various backgrounds to explore parallels between systemic risk in the financial sector and in selected domains in engineering, ecology and other fields of science. The resulting report was published late last year and makes stimulating reading.

Catastrophic changes in the overall state of a system can ultimately derive from how it is organized — from feedback mechanisms within it, and from linkages that are latent and often unrecognized. The change may be initiated by some obvious external event, such as a war, but is more usually triggered by a seemingly minor happenstance or even an unsubstantial rumour. Once set in motion, however, such changes can become explosive and afterwards will typically exhibit some form of hysteresis, such that recovery is much slower than the collapse. In extreme cases, the changes may be irreversible.

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Two particularly illuminating questions about priorities in risk management emerge from the report. First, how much money is spent on studying systemic risk as compared with that spent on conventional risk management in individual firms? Second, how expensive is a systemic-risk event to a national or global economy (examples being the stock market crash of 1987, or the turmoil of 1998 associated with the Russian loan default, and the subsequent collapse of the hedge fund Long-Term Capital Management)? The answer to the first question is “comparatively very little”; to the second, “hugely expensive”.

Adaptation

Self-organized traffic safety

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The UK County Surveyor’s Society Transport Futures group has just published a report Travel is Good that considers how to deal with problems likely to be encountered in transport over the next 20 years. They recommend increasing uncertainty and allowing the self-organization of multiple forms of traffic to increase safety, along with congestion pricing cars, and preparing for climate change.

This report is part of a trend of European traffic planners moving away from signs and regulations to increase traffic safety. Rather than legislating space for cars they are requiring drivers, pedestrians, and cyclists to think about what they are doing rather than obeying signs. This approach appears to fit many resilience principles by encouraging many small disturbances makes the overall system more resilient (see: Traffic Safety: Regulation vs. Self-Organization).

The UK’s Times Online describes the report in their article How stripping the streets of traffic lights and signs may be a life saver:

Redesigning roads to leave drivers and pedestrians uncertain about who has priority will save lives, according to a report by Britain’s most senior transport officials. The move would automatically cut traffic speed without the need for cameras, they say.

Barriers and signs such as railings, kerbs, traffic lights and white lines cause crashes because people assume they will keep them safe and therefore fail to focus on what other road users are doing. Giving drivers less information by removing signs will encourage them to slow down to negotiate a safer course along high streets and across junctions.

The report by the County Surveyors’ Society, which represents local authority directors responsible for most roads in England and Wales, recommends a revolution in road design. It calls for widespread adoption of the concept of “shared space”, pioneered in the Netherlands and better known in Britain as “naked streets”.

It says: “Paradoxically, creating barriers and divisions may worsen safety because drivers and riders feel more confident and speed up, despite the limitations on the speed at which the human mind can take in the amount of information now displayed on our roads. The human response to increased in-car and on-road safety may be to increase risky behaviour.

…Ben Hamilton Baillie, a transport consultant who contributed to the report, said it marked acceptance at the highest levels of shared space principles that five years ago were considered outlandish. Roads in Bath, Ashford in Kent, and Ancoats in Manchester are being converted to shared space. Work will begin next year on removing kerbs and giving pedestrians greater priority on Exhibition Road in West London

Scenarios

Two Energy Futures from Shell Oil

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This week Shell oil published an article by their chief executive Jeroen van der Veer that presents two scenarios of global energy development – Scramble and Blueprints. Shell has long been a leader in scenario planning. Other Shell scenarios and previous Shell scenarios are also available online.

…the distant future looks bright, but much depends on how we get there. There are two possible routes. Let’s call the first scenario Scramble. Like an off-road rally through a mountainous desert, it promises excitement and fierce competition. However, the unintended consequence of “more haste” will often be “less speed,” and many will crash along the way.The alternative scenario can be called Blueprints, which resembles a cautious ride, with some false starts, on a road that is still under construction. Whether we arrive safely at our destination depends on the discipline of the drivers and the ingenuity of all those involved in the construction effort. Technological innovation provides the excitement.

Regardless of which route we choose, the world’s current predicament limits our room to maneuver. We are experiencing a step-change in the growth rate of energy demand due to rising population and economic development. After 2015, easily accessible supplies of oil and gas probably will no longer keep up with demand.

As a result, we will have no choice but to add other sources of energy – renewables, yes, but also more nuclear power and unconventional fossil fuels such as oil sands. Using more energy inevitably means emitting more CO2 at a time when climate change has become a critical global issue.

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Scenarios

Paul Saffo: Forecasting must embrace uncertainty

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Futurist Paul Saffo recently gave a talk “Embracing Uncertainty – the secret to effective forecasting” at the Long Now foundation. The talk (mp3) and Stewart Brand’s summary are online on the Long Now Foundation website. The talk is similar to his article in Harvard Business Review Six Rules for Effective Forecasting (see also Podcast interview). His six rules are:

  1. Define a Cone of Uncertainty
  2. Look for the S Curve
  3. Embrace the Things That Don’t Fit
  4. Hold Strong Opinions Weakly
  5. Look Back Twice as Far as You Look Forward
  6. Know When Not to Make a Forecast

Saffo writes about forecasting:

The role of the forecaster in the real world is quite different from that of the mythical seer. Prediction is concerned with future certainty; forecasting looks at how hidden currents in the present signal possible changes in direction for companies, societies, or the world at large. Thus, the primary goal of forecasting is to identify the full range of possibilities, not a limited set of illusory certainties. Whether a specific forecast actually turns out to be accurate is only part of the picture—even a broken clock is right twice a day. Above all, the forecaster’s task is to map uncertainty, for in a world where our actions in the present influence the future, uncertainty is opportunity.

Unlike a prediction, a forecast must have a logic to it. That’s what lifts forecasting out of the dark realm of superstition. The forecaster must be able to articulate and defend that logic. Moreover, the consumer of the forecast must understand enough of the forecast process and logic to make an independent assessment of its quality—and to properly account for the opportunities and risks it presents. The wise consumer of a forecast is not a trusting bystander but a participant and, above all, a critic.

Adaptation

Mobile phones and global communication

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The spread of mobile phones across the developing world has been extremely rapid in the past few years (e.g. 4X increase between 2001-2005 in Africa).

Teledensity

The BBC reports on the annual Information Economy report from the UN conference on trade and development:

It was now well-established, said the report, that greater use of technology in businesses, schools and at home could raise standards of living and help people prosper.

In many developing nations the mobile phone had become the standard bearer for these changes, it said.

“In Africa, where the increase in terms of the number of mobile phone subscribers and penetration has been greatest, this technology can improve the economic life of the population as a whole,” it said.

In rural communities in Uganda, and the small vendors in South Africa, Senegal and Kenya mobile phones were helping traders get better prices, ensure less went to waste and sell goods faster.

The take up of mobiles was allowing developing nations to “leapfrog” some generations of technology such as fixed line telephones and reap more immediate rewards, said the report.

Greater use of computers in small businesses in countries such as Thailand made staff boost productive, it said. A study of Thai manufacturing firms showed that a 10% increase in computer literate staff produced a 3.5% productivity gain.

The developing world was also catching up in terms of net availability. In 2002, said UNCTAD, net availability was ten times higher in developing nations. In 2006, net availability was only six times higher.

Ecosystem services, Greenlash

Nitrogen transfer from sea to land via commercial fisheries

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Roxanne Maranger an ecologist at the University of Montreal and other have a neat paper in Nature Geoscience Nitrogen transfer from sea to land via commercial fisheries that shows that commercial fishing removed substantial amounts of nitrogen from coastal oceans. They show that while fertilizer run-off into the ocean and fishery removal of nitrogen have increased over the past forty years, the increase in nitrogen inputs has been faster. Consequently the proportion of nitrogen removed from coastal zone has dropped from a global average of about 60% in 1960 to about 20% in 2000. This trend as well as the spatial pattern of nitrogen withdrawal are shown in figure 1 of their paper:

Nature GeoScience

Figure 1. a, Total amount of N in fertilizer run-off (Tg N yr-1=1012 g N yr-1) delivered to the global ocean (left axis, blue line) and N returned as fish biomass (left axis, red line) per year over time. The orange line (right axis) is the proportion of fish N removed relative to fertilizer N exported (ratio fish N:fertilizer N) reported as a percentage. b, The ratio of fish N removed to fertilizer N entering 58 different large marine ecosystems (LMEs) for the year 1995.

The paper shows that fishing can help reduce the impacts of nitrogen pollution. But that nitrogen pollution that destroys fisheries, through the creation of anoxic “dead zones”, can make nitrogen pollution even worse by removing a major source of nitrogen withdrawals. Similarly, overfishing the reduces the amount of fish biomass that can be removed from a system will make the system more vulnerable to eutrophication.