Link: nsf.gov – National Science Foundation (NSF) News – Methane Releases From Arctic Shelf May Be Much Larger and Faster Than Anticipated – US National Science Foundation (NSF) March 12, 2010 by tumo nsf.gov – National Science Foundation (NSF) News – Methane Releases From Arctic Shelf May Be Much Larger and Faster Than Anticipated – US National Science Foundation (NSF) “Release of even a fraction of the methane stored in the shelf could trigger abrupt climate warming.”