Photo: Methane Bubbling Up From Undersea Permafrost?



From June 15 (top) to July 27 (bottom), sea ice in the East Siberian Sea declined by as much as 81,081 square miles (210,000 square kilometers) a day, a rapid dip attributed to global warming.

The sea is also bubbling with methane, a powerful greenhouse gas, being released from underwater reserves, a Russian team announced during a December 2008 meeting.

The discovery could be a sign that global warming is thawing underwater permafrost, which is releasing methane that has been locked away for many thousands of years.

Images courtesy NASA


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