Overshoot

Oceans acidifying faster today than in past 300 million years

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The oceans may be acidifying faster today than they did in the last 300 million years, according to scientists publishing a paper this week in the journal Science. “What we’re doing today really stands out in the geologic record,” says lead author Bärbel Hönisch, a paleoceanographer at Columbia University’s Lamont-Doherty Earth Observatory.

“We know that life during past ocean acidification events was not wiped out–new species evolved to replace those that died off. But if industrial carbon emissions continue at the current pace, we may lose organisms we care about–coral reefs, oysters, salmon.”

The Trajectory of Empires

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Strong as empires seem, every empire that’s ever existed has collapsed, except the one currently owned by the United States–and the odds on that one’s survival aren’t looking good just at the moment. Behind the rhythm of rise and fall that shapes the lives of empires lies a familiar relationship between the pressures toward limitless growth and the inevitable limits of a finite world.

A conversation with Herman Daly

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We chatted with Herman Daly on a range of topics from ecology to economics, policy to politics, relocalization to religion. He is Emeritus Professor at the University of Maryland School of Public Policy, pioneered work on Steady-State and Ecological Economics, and has received more accolades and written more books than we can mention.

Paul Kingsnorth & Friends Discuss “Confessions of a Recovering Environmentalist”

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Has environmentalism lost its way? What does sustainability really have to do with a healthy planet? During Orion’s latest live web event, Paul Kingsnorth discussed his essay “Confessions of a Recovering Environmentalist” in the January/February 2012 issue of the magazine. According to Kingsnorth, environmentalism has effectively died, its original deep connection to nature lost in the language of science and economics. Kingsnorth is joined by authors Lierre Keith and David Abram.

Can no-take fisheries help protect our oceans?

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Nearly 40% of the global population currently lives within 50 km of a coast, and many of these people depend on the productivity of the sea. Inadequate fisheries management and widespread overuse of marine and coastal resources are eroding the traditional basis of life for millions of people. As coastal populations soar, pressure on marine resources has become unsustainable in many places.

Are no-take fishery reserves the answer?

Bill Rees’ last lecture

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Last December, after more than 40 years teaching at the School of Community and Regional Planning (SCARP) at the University of British Columbia, Bill Rees gave his last lecture as a full-time professor. As one of his last students, I found his class captivating, and in following up with many of his former students, realized they felt the same way. His career defined the modern science of sustainability, and touched the lives of many, inspiring individuals to devote their lives towards adapting our species to live responsibly on this planet.

Premises for a New Economy

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There is considerable uncertainty about how tightly ecology constrains planetary growth. Given this uncertainty, prudence dictates a conservative approach that takes limits to growth seriously. In an ecologically constrained world, both the global North and the global South need to consider new obligations and limits. A basic commitment to social justice requires that the claims of the poor, chiefly residing in the South, take precedence over the claims of the rich, chiefly residing in the North. The North may have to accept an actual reduction in conventional measures of standard of living to create ecological space for Southern growth.

There Is More to It than Oil

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The end of our industrial lifestyle paradigm will be dictated by Liebig’s Law, and by humanity’s response to its consequences. Unfortunately, it is impossible to know at this point which increasingly scarce nonrenewable natural resource (NNR) or NNR combination will ultimately prove to be industrialized humanity’s limiting factor.

Consequently, humanity’s global societal collapse may be triggered by scarcity associated with one or more NNRs other than those commonly considered “most critical” to the perpetuation of our industrial lifestyle paradigm—fossil fuels, or oil specifically. After all, the space shuttle Challenger disaster was caused by a faulty o-ring.