methane feedback effect

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Bubbles of warming, beneath the ice
by Margot Roosevelt 2/20/9
http://www.latimes.com/news/science/environment/la-na-global-warming22-2009feb22,0,646220.story
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video clip Frozen Heat: a global warming threat from the Arctic
narrated by Katey Walter, University of Alaska
alaska.edu/uaf/cem/ine/walter
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Bubbles of warming, beneath the ice