Tuesday, May 1, 2012

Arctic methane lid may be fracturing

Alaska Dispatch: In what may point to an alarming new driver for global warming, scientists have found unexpected amounts of methane emerging from the Arctic Ocean between cracks and open leads amid pack ice far out to sea. Samples taken during five pole-to-pole research flights during 2009 and 2010 found the super greenhouse-gas methane, or CH4, appearing in concentrations about half a percent above background levels -- a surprising level given the distance from known sources like thawing permafrost and frozen...

URL: http://www.alaskadispatch.com/article/arctic-methane-lid-may-be-fracturing
Enclosure: http://www.alaskadispatch.com/sites/default/files/imagecache/article_scale_width_200/images/topic/science/6396671233-0a73147060-b.jpg

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