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Yale Environment 360: The southern limit of permafrost around the James Bay region in Quebec has moved 80 miles to the north since 1957, according to a new study. Scientists at the Université Laval tracked the northerly retreat of the tundra by examining distinctive, oval-shaped land elevations known as palsas, which form over permafrost. By comparing aerial photos taken in the James Bay region between the 51st and 53rd Serge PayetteMelt ponds on tundra parallels in 1957 with findings from helicopter surveys in ......
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Permafrost Line in Quebec Retreats 80 Miles in 50 Years, Study Says
Posted by Washington Post: Juliet Eilperin on February 17th, 2010
Posted in Water Conservation