Sentences with phrase «thawing permafrost along»

Another is that thawing permafrost along the margins of a lake dislodges frozen plant and animal remains, causing them to sink to the bottom of the lakes, where they decompose and produce methane, a potent greenhouse gas.

Not exact matches

Walter Anthony, K. M., et al. (2012), Geologic methane seeps along boundaries of Arctic permafrost thaw and melting glaciers, Nat.

Walter Anthony, K. M., et al. (2012), Geologic methane seeps along boundaries of Arctic permafrost thaw and melting glaciers, Nat.

The frequency and intensity of forest fires in the region have been increasing along with rising temperatures.5, 7,13 An average of around 9.9 million acres (4 million hectares) of boreal forest burned annually in Russia from 1975 to 2005 — and that rate more than doubled in the 1990s.15 One of West Siberia's largest forest fires on record occurred in 2003, claiming some 47 million acres (20 million hectares) of land7, 15 and emitting heat - trapping emissions equal to the total cuts in emissions the European Union pledged under the Kyoto Protocol.2, 7,16 Higher temperatures and thawing permafrost are probably contributing to the rising frequency and severity of forest fires in West Siberia.5, 7,14

Thawing permafrost, melting sea ice, and rising sea levels along the Alaskan shore has eroded the coastline near a Defense Department early warning radar site.

Since the late 1970s, permafrost temperatures across the state — including on the Seward Peninsula — have risen along with increasing air temperatures.3, 5 In fact, 22 of 24 thaw (thermokarst) ponds studied near Nome shrank over the latter half of the last century, with losses in surface area ranging from 6 to 100 percent, and averaging 55 percent.4, 8