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Arthur Max / AP
In this photo taken Oct. 26, 2010, a tiny chapel is seen on the grounds of the Northeast Science Station near the town of Chersky in Siberia, 4,000 miles east of Moscow, Russia. Scientists are studying methane gas locked inside Siberia's frozen soil and under its lakes. Methane, a greenhouse gas 23 times more powerful than carbon dioxide, has been seeping out since the end of the last ice age. But recently, especially in the last five years as the Earth has warmed, the permafrost has thawed more rapidly, accelerating the release of methane and contributing further to climate change.