Tuesday, July 28, 2009

Melting Permafrost Could Unleash Massive Carbon Dioxide Emissions

Climate Change Calculus: Why It's Even Worse Than We Feared
Published Jul 24, 2009
From the magazine issue dated Aug 3, 2009
Newsweek Voices - Sharon Begley
Newsweek.com

"Scientists have long known that permafrost, if it melted, would release carbon, exacerbating global warming, which would melt more permafrost, which would add more to global warming, on and on in a feedback loop. But estimates of how much carbon is locked into Arctic permafrost were, it turns out, woefully off."

" 'It's about three times as much as was thought, about 1.6 trillion metric tons, which has surprised a lot of people,' says Edward Schuur of the University of Florida. 'It means the potential for positive feedbacks is greatly increased.' "

"That 1.6 trillion tons is about twice the amount now in the atmosphere. And Schuur's measurements of how quickly CO2 can come out of permafrost, reported in May, were also a surprise: 1 billion to 2 billion tons per year. Cars and light trucks in the U.S. emit about 300 million tons per year."

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Carbon Confessions from Earth Day 2009, Santa Barbara, CA

The Tree of Carbon Forgiveness

The Tree of Carbon Forgiveness
Carbon Penance Generator

 

   Instructions

 

  1.  Click the Forgiveness Button.
  2.  Implement Carbon Penance quickly.
  3.  Avoid future Carbon Temptation through greater

     personal and social awareness. 

 


Penance -- Then and Now

Penance -- Then and Now
In the Middle Ages, there was no buying and selling of carbon indulgences. Now it's a booming business. "The worst of the carbon-offset programs resemble the Catholic Church's sale of indulgences back before the Reformation," said Denis Hayes, the president of the Bullitt Foundation, an environmental grant-making group. "Instead of reducing their carbon footprints, people take private jets and stretch limos, and then think they can buy an indulgence to forgive their sins." The New York Times, 4/29/07

What's a Carbon Footprint?

What's a Carbon Footprint?
A carbon footprint is a "measure of the impact human activities have on the environment in terms of the amount of green house gases produced, measured in units of carbon dioxide". It is meant to be useful for individuals and organizations to conceptualize their personal (or organizational) impact in contributing to global warming. A conceptual tool in response to carbon footprints are carbon offsets, or the mitigation of carbon emissions through the development of alternative projects such as solar or wind energy or reforestation. A carbon footprint can be seen as a subset of earlier uses of the concept of ecological footprints

Source:  Wikipedia - Carbon Footprint