Agence France-Presse: Global warming is driving forest fires in northern latitudes to burn more frequently and fiercely, contributing to the threat of runaway climate change, a new study says.
Increased intensity of fires in Alaska's vast interior over the last decade has changed the region from a sink to a source of carbon dioxide, the greenhouse gas most responsible for heating up the planet, the study found.
On balance, in other words, boreal forests in the northern hemisphere may now soak up less of the heat-trapping......
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Fires fuel threat of runaway climate change
Posted by Washington Post: Juliet Eilperin on December 12th, 2010
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