Melting permafrost will hasten warming

April 9, 2015 8:02 AM

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This new source of greenhouse gas emissions could be large enough to substantially undermine attempts to cut down on emissions from fossil fuels.

WASHINGTON — As the frozen Arctic soil known as “permafrost” thaws, it could release large amounts of carbon – in the form of both carbon dioxide and methane – to the atmosphere. And this new source of greenhouse gas emissions could be large enough that it could substantially undermine attempts to c...

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