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Perils lurk in permafrost

Updated: 2011-12-25 08:04

By Justin Gillis(The New York Times)

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Perils lurk in permafrost

 Perils lurk in permafrost

Katey M. Walter Anthony, a scientist researching permafrost thaw in Alaska, found plumes of methane gas rising from lake bottoms. Josh Haner / The New York Times

Perils lurk in permafrost

Perils lurk in permafrost

 Perils lurk in permafrost

Thawing permafrost releases greenhouse gases. Katey M. Walter Anthony studies the process. Josh Haner / The New York Times

Perils lurk in permafrost

Perils lurk in permafrost

Perils lurk in permafrost

The New York Times

(China Daily 12/25/2011 page9)