Alaskan peatlands expanded rapidly as ice age waned | Science News

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Alaskan peatlands expanded rapidly as ice age waned

Growth fueled by warm summers, cold winters

By
4:25pm, April 5, 2010

A rapid expansion of Alaskan peatlands at the end of the ice age was fueled by highly seasonal climate conditions, a new analysis suggests. The finding raises the possibility that future warming could decrease or reverse carbon storage in peatlands and thereby further aggravate climate change.

The study, published online the week of April 5 in the Proceedings of the National Academy of Sciences, shows that most of Alaska’s peatlands formed at a time whe

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