All posts by Garry Peterson

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

Reinventing nails: increasing efficiency via technological finesse

nailSometimes the efficiency of resource use can be increased through technological that uses understanding to improve technological finesse. The redesign of the nail appears to be a great example of this situation. PopSci picked a new nail as its innovation of 2006. Research on nails has lead to better nail designs which has produced nails that hold things together much better, but that are not much more costly to manufacture. From PopSci’s Best of What’s New 2006

Hurricane winds rip apart nailed-together walls, and earthquakes shake houses so violently that a nailhead can pull straight through a piece of plywood. Since we can’t stop natural disasters, Bostitch engineer Ed Sutt has dedicated his career to designing a better nail. The result is the HurriQuake, and it has the perfect combination of features to withstand nature’s darker moods. The bottom section is circled with angled barbs that resist pulling out in wind gusts up to 170 mph. This “ring shank” stops halfway up to leave the middle of the nail, which endures the most punishment during an earthquake, at its maximum thickness and strength. The blade-like facets of the nail’s twisted top—the spiral shank—keep planks from wobbling, which weakens a joint. And the HurriQuake’s head is 25 percent larger than average to better resist counter-sinking and pulling through. The best part: It costs only about $15 more to build a house using HurriQuakes. $45 per 4,000;

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Traffic Safety: Regulation vs. Self-Organization

Drachten picture from spiegel nov 2006 European traffic planners are 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 – for example – allowing many small disturbances makes the overall system more resilient.

In a Nov 2006, Spiegel magazine article Controlled Chaos: European Cities Do Away with Traffic Signs:

“We reject every form of legislation,” the Russian aristocrat and “father of anarchism” Mikhail Bakunin once thundered. The czar banished him to Siberia. But now it seems his ideas are being rediscovered.

European traffic planners are dreaming of streets free of rules and directives. They want drivers and pedestrians to interact in a free and humane way, as brethren — by means of friendly gestures, nods of the head and eye contact, without the harassment of prohibitions, restrictions and warning signs.

A project implemented by the European Union is currently seeing seven cities and regions clear-cutting their forest of traffic signs. Ejby, in Denmark, is participating in the experiment, as are Ipswich in England and the Belgian town of Ostende.

The utopia has already become a reality in Makkinga, in the Dutch province of Western Frisia. A sign by the entrance to the small town (population 1,000) reads “Verkeersbordvrij” — “free of traffic signs.” Cars bumble unhurriedly over precision-trimmed granite cobblestones. Stop signs and direction signs are nowhere to be seen. There are neither parking meters nor stopping restrictions. There aren’t even any lines painted on the streets.

“The many rules strip us of the most important thing: the ability to be considerate. We’re losing our capacity for socially responsible behavior,” says Dutch traffic guru Hans Monderman, one of the project’s co-founders. “The greater the number of prescriptions, the more people’s sense of personal responsibility dwindles.”

In 2004 Wired Magazine had an article about Hans Monderman:

Hans Monderman is a traffic engineer who hates traffic signs. Oh, he can put up with the well-placed speed limit placard or a dangerous curve warning on a major highway, but Monderman considers most signs to be not only annoying but downright dangerous. To him, they are an admission of failure, a sign – literally – that a road designer somewhere hasn’t done his job. “The trouble with traffic engineers is that when there’s a problem with a road, they always try to add something,” Monderman says. “To my mind, it’s much better to remove things.”

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Ambivalence and creativity

The Economist points to a recent interesting article on The effects of emotional ambivalence on creativity in the Academy of Management Journal [49(5) 1016 – 1030] by Christina Ting Fong that suggests that unusual work environments and emotional tension may result in more creativity than a happy workplace.

The paper’s abstract states:

Emotional ambivalence, or the simultaneous experience of positive and negative emotions, is an underexplored emotional state in organizations. The results from two laboratory experiments demonstrate that individuals experiencing emotional ambivalence are better at recognizing unusual relationships between concepts, therefore showing an ability believed to be important to organizational creativity. Informational theories of emotion suggest that individuals interpret emotional ambivalence, which is perceived to be an unusual emotional experience, as signaling they are in an unusual environment, which in turn increases sensitivity to unusual associations. These results yield important implications regarding how to influence creative performance at work.

Elinor Ostrom answers 12 questions

Elinor Ostrom is asked 12 questions in the German journal GAIA (4|2006). Arun Agrawal introdues Elinor “Lin” Ostrom in the journal as follows:

Few social scientists can lay claim to the kind of achievements for which Lin is famous: inventing and consolidating the commons as a whole new field of investigation, launching new institutions that shape the research careers of hundreds of social scientists, and influencing public policy in an entirely new direction in relation to natural resource governance. …The work that has brought her the acclaim and admiration of peers and the adulation of younger scholars has effectively countered widely accepted orthodoxies about the ineffectiveness of common property. Lin’s scholarly contributions are founded upon the bedrock of evidence from literally tens of thousands of studies, refutable propositions based in fundamental social science, and rock-solid, theoretically informed, rigorous empirical and experimental research. It would be no exaggeration to say that there is scarcely a political scientist better known within and outside the discipline.

A few of GAIA’s questions and Elinor Ostrom’s answers are below. Its great to discover that she thinks the work of the Resilience Alliance is exciting.

7. What field of research in environmental sciences – besides the one you are working in – do you consider most exciting?

The Resilience Alliance is, in my opinion, producing some of the most exciting contemporary research by bringing together centers throughout the world to study the resilience of ecological systems to natural- and human-induced disturbances.

8. Can you name any person or event that has had a particular influence on your commitment to environ- mental issues?

Before reading the work of Robert Netting in the early 1980s, I had no inkling it would ever be efficient to allocate land for human use using common property. I understood that water and fish existed in common-pool resources and required a variety of property-rights systems, but I thought land was a private good and needed private ownership to be allocated efficiently. Netting’s analysis was unnerving. He asked why Alpine farmers used private ownership to manage their valley farmlands, but the same farmers used forms of common property to manage Alpine meadows. His analysis demonstrated that forms of common property were more effective than private ownership when land had low productivity, when rainfall and other nutrients were spatially and temporally patchy, and when substantial economies of scale in building infrastructure existed. His in-depth evidence was substantial and the theoretical argument broadened my horizon tremendously. It blew my mind!

10. What knowledge about the environment would you like to pass on to young people?

Young people need to learn about the diversity of ecosystems and the diversity of institutional arrangements that humans have crafted to cope effectively with different settings and problems.

Humans have used a large set of rules in various combinations in the effort to match the specific characteristics of particular resource systems. Rules related to who can access, harvest from, manage, exclude others, and sell aspects of a resource system are the building blocks of resource use and protection situations. When systems fail, we need to use empirically warrantable diagnostic theories to analyze the sources of failure and which rules need to be changed (and how) to create a more sustainable future.

11. What are you reading at the moment?

I am enjoying reading Frans de Waal’s Primates and Philosophers: How Morality Evolved. Since I have studied reciprocity and fairness among humans in the experimental lab and in field settings, it is fascinating to read his discussion of these processes among chimpanzees and capuchin monkeys.

12. Which question – apart from the ones we raised – is the most important one?

What can each one of us do every day to improve our environment? If we think that the only answers to environmental problems are what “the” government undertakes, we face a real tragedy.

Africa ReOrienting: China & Africa

Two recent newspaper articles on the role of new Chinese trade with Africa. From the New York Times China’s African Adventure:

China is now one of Africa’s largest customers not only for oil but also for timber, minerals, cotton and other natural resources. China in turn has flooded Africa with cheap consumer goods. The I.M.F. forecasts that China’s trade with Africa will top $50 billion this year and could reach $100 billion by 2010. Over the last five years, sub-Saharan Africa’s growth rate has almost doubled, to 5.8 percent from 3 percent; economists attribute much of the increase to trade with China and other Asian countries.

The perils of Beijing’s Africa strategy in the International Herald Tribune:

Politically, China’s “hands-off politics” approach was initially a welcome change for many African leaders who bristled over the conditions imposed by the United States, Europe and multilateral institutions.

… Beijing’s unwillingness to press its state- owned firms on good governance and social responsibility is producing a backlash in several African countries. Last month, Gabon ordered the Chinese energy firm, Sinopec, to halt exploration in Loango national park after a U.S. conservation group accused it of desecrating the forest and operating without an environmental-impact study.Anecdotal evidence also suggests simmering grass-roots resentment of the growing Chinese presence. Legal and illegal Chinese immigrants are moving to Africa by the hundreds of thousands to work in extractive industries, construction and manufacturing, prompting charges that Chinese investors are taking rather than creating jobs.

Ultimately, African leaders have to decide whether Beijing’s “strictly business” strategy is compatible with the principles of transparency and good governance set out in their New Partnership for Africa’s Development (NEPAD). Every day brings new evidence that getting China to sign on to these principles will be critical for the continent’s long term development and stability.

The New York Times article China’s African Adventure goes on to present a US reaction to China’s increased trade with Africa:

The People’s Republic has declared 2006 “the Year of Africa.” The West had its own unofficial Year of Africa in 2005, and it is instructive to compare the two. The industrial nations conducted a sort of moral crusade, with advocacy organizations exposing Africa’s dreadful sores and crying shame on the leaders of wealthy nations and those leaders then heroically pledging, at the G8 meeting in July, to raise their development assistance by billions and to open their markets to Africa. Once everyone had gone home, the aid increase turned out to be largely ephemeral and trade reform merely wishful. China, by contrast, offers a pragmatic relationship between equals: the “strategic partnership” promised in China’s African policy is premised on “mutual benefit, reciprocity and common prosperity.” And the benefits are very tangible. Earlier this month, at a much-ballyhooed summit meeting in Beijing attended by political leaders from all but five African states (the ones that recognize Taiwan), the Chinese president, Hu Jintao, announced that China would provide $5 billion in preferential loans and credits over the next three years, effectively doubling aid to Africa, while canceling many outstanding debts. A dozen Chinese companies signed agreements for $1.9 billion worth of construction projects and investment.

If we believe that a model of development that strengthens the hand of authoritarian leaders and does little, if anything, to empower the poor is a bad long-term strategy for Africa, then we are going to have to come up with a strategic partnership of our own. And it is not only a question of what is good for the African people. The United States has a real security interest in avoiding failed states and in blocking the spread of terrorism in East and North Africa. What’s more, the United States already imports 15 percent of its oil from Africa, mostly from Angola and Nigeria; that figure is bound to rise and could even double, eventually making Africa as large a supplier of oil as the Middle East now is. China’s Africa policy shows that globalization is increasingly divorced from Westernization. We have grown accustomed to the idea that Africa needs us; it’s time to recognize that we, like China, need Africa.

Embrace the Collapse: another Homer-Dixon interview

The Tyee, an online Vancouver newsite, has a two part interview with Thomas Homer-Dixon, which focusses on some different issues than the Worldchanging interview. The first part Embrace the Collapse focusses on learning from collapse, while the second part, An Internet Idea Army, focusses on social learning. From the article:

Thomas Homer-Dixon says there’s hope. Not that global warming isn’t upon us, or that terrorists won’t explode a nuclear device in the near future, or that the growing gap between rich and poor won’t result in deeply destructive conflict, or that our social, political and economic systems aren’t deeply vulnerable to collapse.

No, not that kind of hope. That’s actually called denial. The question is, what might we do when one or all of those events — which Homer-Dixon calls “moments of contingency” — shake us out of our collective inertia? What might we do to ensure that, ahem, more is very much less.

In The Upside of Down: Catastrophe, Creativity, and the Renewal of Civilization, that’s the central question. Can we turn failure into some kind of success? Homer-Dixon thinks we can, and his prescription isn’t very complicated. One thing we must do, he says, is develop a “prospective mind,” by which he means think ahead, and plan to take advantage when a crisis creates an opportunity.
…Homer-Dixon devotes a large section of the book to the work of former UBC professor and ecology guru Buzz Holling, who has looked at what allows complex natural systems to remain resilient. At the core of Holling’s “panarchy theory” is the simple idea that complex systems grow, become brittle, collapse and then renew themselves. If the growth cycle goes on too long, however, the potential increases for “deep collapse,” which can pretty much cut out that heartwarming renewal stage.

It’s the human tendency to try and keep everything as it is that has Holling and Homer-Dixon worried. If we don’t plan for the occasional collapse, if we don’t plan for real change, we’re going to pay and pay and pay.

The Upside of Down is also a hopeful book. Homer-Dixon, the Victoria-raised director of the Trudeau Centre for Peace and Conflict Studies, wants us to learn from ecology. He wants us to see human endeavour through nature’s lens. Systems grow, mature, become rigid, and break down. If we accept that this is true for human systems, we will be better able to create less rigid, less dangerously interdependent systems to minimize potential domino effects, and we will learn to plan for renewal when things do break down.

Of course, many people can talk a good line about impending peril. The question is, what are they actually doing about it? Homer-Dixon places a great deal of faith in individuals, in their ability to collaborate, create consensus, and place that consensus squarely in the public realm in a manner that cannot be ignored.

Some bits from the interview are below: Continue reading

Interview with Thomas Homer-Dixon on Upside of Down

WorldChanging‘s Hassan Masum interviews Thomas Homer-Dixon about his new book, Upside of Down: Catastrophe, Creativity, and the Renewal of Civilization. The book is heavily influenced by the work of people in the Resilience Alliance – Buzz Holling, Sander van der Leeuw and and Joe Tainter in particular, along with the book Supply Side Sustainability by Tim Allen, Joe Tainter and Thomas Hoekstra.

HM: For me, one of the most resonant focal points of your book was the dual theme of resilience and catagenesis. I wonder if you agree that a particularly practical avenue is to adopt “low-regrets” technologies and systems?

More generally, what creative new kinds of institutions, customs, or ways of thought would you like to see arise, that could help spur catagenesis on an ongoing basis?

TH: We need to build buffering capacity in our societies and systems that’s fungible, that can be moved back and forth between different eventualities.

In the first part of the book, I talk about people’s desire to hold on, to keep things the same. But we can’t always keep things the same, since we don’t have as much control over reality as we think we do. This is very different from being fatalistic. The whole idea of the prospective mind is to develop a new set of customs – proactive, anticipatory, comfortable with change, and not surprised by surprise.

Institutionally, we could build in tax incentives and subsidies for people to make households more resilient. For example, if we have an energy grid that’s unreliable, maybe we shouldn’t build condo apartments that are totally dependent on electricity for elevators, water, and air conditioning. In some business towers, the windows don’t even open without power. This kind of housing is fundamentally reliant on large-scale centralized power production.

But what if our economy provided tax incentives for residents and commercial centers to have autonomous power production? If these kinds of incentives were incorporated into everyday policy – whether transportation, electricity, food or water – our systems would evolve to be more capable of withstanding shocks.

I’m sure if we got smart people around the table to think about this, we would generate thousands of specific ideas. Right now resilience isn’t treated as important, so people don’t pay a premium for it – and there will be a cost associated with the necessary capital investments, a cost that draws resources away from other things. But you’re buying resilience – a positive externality in the system, that benefits everybody to the extent it’s there.

It’s partly the role of government to provide encouragement to do these kinds of things. Distributed open source problem solving would also be an essential feature of a society which recognized that catagenesis is an important part of adaptation – that you’re going to have growth, increasing complexity, breakdown, recombination, regeneration, regrowth, and so forth in cycles again and again. A system able to incorporate those cycles in a natural, “standard operating procedure” kind of way is going to require non-hierarchical distributed problem solving.

Let me take an analogy. Within our market economy, the Schumpeterian notion of creative destruction is manifested every day – the growth of new industrial sectors, their decline and obsolescence, their replacement by new technology. Individual companies will start and grow, but may eventually go bankrupt. This creative destruction is part of the everyday world in market economies – it’s part of life, and a reason why market economies are so adaptive.

Somehow we need to take that normative comfort level that markets have to adaptation, and introduce the same kind of culture into our social and political worlds. Remarkably, in economies nobody assumes that things stay the same. But in political systems, everybody assumes change is an anomaly, and to the extent change is allowed, it’s incremental and managed.

HM: How are you feeling about this book, now that it’s complete and about to be released?

TH: It’s scary because it’s an encapsulation of 30 years of thought, and I know I’m going to take some bruises on this one. One of the reasons I spend much of the book talking about the problems we face in detail is that I’m sick of people dismissing the fact that we’re in a serious situation. By the time you finish chapter 8, if you’ve been listening and thinking, it’s going to be hard to deny at least the possibility that there will be serious breakdowns in the future.

The last part of the book is about denial, about what breakdowns might look like, and what we might do about them. [With the potential of open-source democratic problem-solving and resilience], it’s the first time I’ve started to see a glimmer of something that offered a way out. At the end of the last book, I didn’t have a sense of what the way out might be.

It was by reading Buzz Holling’s work that I realized what normally seems bad can be an enormous opportunity. It’s a radical idea that some people are not going to like, and they may ridicule and pigeonhole it.

Human development, Canada, and water

Canada ranks #6 in the world according the UN’s annual report on human development. Back in the 1990s Canada ranked number #1, a fact frequently trumpeted by the Canadian government. Today, are Canadians worse off?The human development report ranks countries using an index that combines three aspects of human development: living a long and healthy life (measured by life expectancy), being educated (measured by adult literacy and enrolment in primary, secondary and post-secondary education) and having a decent standard of living (the per capita purchasing power parity adjusted GDP). The index provides a broader view of human wellbeing than economic growth, but it also excludes difficult to measure aspects of development such as respect for human rights, democracy and social inequality.

canada HDI

As shown in the figure above, Canada has actually improved on all these indicators over the past decade, but some other rich countries have improved a little bit more. The difference between Canada and other rich countries is relatively minor, compared to that between the rich countries and other regions.

The big pattern revealed in this graph is that contrary to many people’s expectations, human wellbeing has substantially improved in most places in the world. Trends for individual countries can be explored using an interactive graph on the report’s website. The Swedish NGO Gapminder, founded by Hans Rosling, also has a visualization of data from the 2006 Human Development Report. These show huge changes in child mortality and family size, with some countries in Africa lagging behind the rest of the world.

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Abrupt Climate Change: an oceanic heat transport regime shift

On Real Climate, Stefan Rahmstorf writes of new evidence for regime shifts in global ocean circulation:

The latest results of the EPICA team (the European Project for Ice Coring in Antarctica) are published in Nature today (see also the News & Views by RealClimate member Eric Steig). Their data from the other pole, from the Antarctic ice sheet, bring us an important step closer to nailing down the mechanism of the mysterious abrupt climate jumps in Greenland and their reverberations around the world, which can be identified in places as diverse as Chinese caves, Caribbean seafloor sediments and many others. So what are the new data telling us?

These data connect the Antarctic ups and downs of climate to the much greater ones of Greenland. This is hard, as dating an ice core is a difficult art (no pun intended). If one makes an error of only 5% in determining the age of an ice layer, for 40,000-year-old ice that’s an error of 2,000 years. But to understand the mechanisms of climatic changes, one needs to know the sequence of events – for example, one needs to know whether a particular warming in Antarctica happens before, after, or at the same time as a warming in Greenland.

… Antarctica gradually warms while Greenland is cold. But as soon as Greenland temperatures jump up in a DO event, Antarctic temperatures start to fall. …

It is (at least in the model) a result of a big change in northward heat transport in the Atlantic. If the heat transport by the Atlantic thermohaline circulation suddenly increases for some reason (we’ll come to that), Greenland suddenly gets warm (an effect amplified by receding sea ice cover of the seas near Greenland) and Antarctica starts to cool. Changes in Antarctica are much smaller and more gradual, as it is far from the centre of action and the vast reservoir of ocean around it acts as a heat store. The basic physics is illustrated very nicely in a simple “toy model” developed by Thomas Stocker and Sigfus Johnsen.

There is still debate over what kind of ocean circulation change causes the change in heat transport. Some argue that the Atlantic thermohaline circulation switches on and off over the cycle of DO events, or that it oscillates in strength. Personally, I am rather fond of another idea: a latitude shift of oceanic convection. This is what happens in our model events pictured above: during cold phases in Greenland, oceanic convection only occurs in latitudes well south of Greenland, but during a DO event convection shifts into the Greenland-Norwegian seas and warm and saline Atlantic waters push northward. But I am biased, of course: my very first Nature paper (1994) as a young postdoc demonstrated in an idealised model the latitude-shift mechanism. Other oceanic mechanisms may also agree with the phasing found in the data. In any case, these data provide a good and hard constraint to test models of abrupt climate events.

But irrespective of the details: the new data from Antarctica clearly point to ocean heat transport changes as the explanation for the abrupt climate changes found in Greenland. We are thus not talking about changes primarily in global mean temperature (these are small in the model results shown above). We are talking about what I call a climate change of the second kind: a change in how heat is moved around the climate system.

There are very few possibilities to change the global mean temperature, a climate change of the first kind: you have to change the global heat budget, i.e. either the incoming solar radiation, the portion that is reflected (the Earth’s albedo), or the outgoing long-wave radiation (through the greenhouse effect). Temporarily, you can also store heat in the ocean or release it, but the scope for changes in global mean temperature through this mechanism is quite limited.

Changes of the second kind are due to changes in heat transport in the atmosphere or ocean, and these can occur very fast and cause large regional change. …

The two kinds of climate change are sometimes confounded by non-experts – e.g., when it is claimed that DO events represent a much larger and more rapid climate change than anthropogenic global warming. This forgets that our best understanding of DO events suggests they are changes of the second kind. The same error is made by those who claim that the 1470-year cycle associated with the DO events could lead to an “unstoppable global warming”. A global warming of 3 or 5 ºC within a century, as we are likely causing in this century unless we change our ways, has so far not been documented in climate history.

One crucial point has been left unanswered thus far. If DO events are due to ocean circulation changes, what triggers these ocean circulation changes? Some have argued the ocean circulation may oscillate internally, needing no trigger to change. I am not convinced – the regularity of the underlying 1470-year cycle speaks against this, and especially the fact that sometimes no events occur for several cycles, but then the sequence is resumed with the same phase as if nothing happened. I’d put my money on some regularly varying external factor (perhaps the weak solar cycles, which by themselves cause only minor climate variations), which causes a critical oceanic threshold to be crossed and triggers events. Sometimes it doesn’t quite make the threshold (the system is noisy, after all), and that’s why some events are “missed” and it takes not 1,500, but 3,000 or 4,500 years for the next one to strike. But the field is wide open for other ideas – the cause of the 1470-year regularity is one mystery waiting to be solved.

Visualizing Greenhouse Gas Emissions

A World GHG Emissions Flow Chart from WRI’s Climate Analysis Indicators Tool (CAIT).

CAIT provides a comprehensive and comparable database of greenhouse gas emissions data (including all major sources and sinks) and other climate-relevant indicators. CAIT can be used to analyze a wide range of climate-related data questions and to help support future policy decisions made under the Climate Convention and in other fora.

world GHG flow chart

Click on the image to see a full size version.

According to the site: All data is for 2000. All calculations are based on CO2 equivalents, using 100-year global warming potentials from the IPCC (1996).