Wednesday, August 24, 2011

Thawing Permafrost Could Accelerate Climate Change

Billion of tons of carbon trapped in permafrost may be released into the atmosphere by the end of this century as the Earth’s climate changes, further accelerating global warming, according to a new computer modeling study led by Charles Koven of Berkeley Lab’s Earth Sciences Division. The study also found that soil in high-latitude regions could shift from being a sink to a source of carbon dioxide by the end of the 21st century as the soil warms in response to climate change. The study is published in last week’s advance online edition of the Proceedings of the National Academy of Sciences. More

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