Permafrost - n. Ground that is permanently frozen.
August 11, 2005 2:33 PM Subscribe
Siberia's permafrost is melting.
New Scientist reports that 250 million acres of permafrost are thawing, exposing the world's largest peat bog. This is likely to release billions of tons of methane gas. This would likely cause a positive feedback loop, massively accelerating global warming.
posted by mosch (87 comments total)
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