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How Thawing Permafrost Is Beginning to Transform the Arctic - Yale E360

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A permafrost slump, the size of a football stadium, on the shore of an unnamed lake in the Canadian Arctic. ED STRUZIK FOR YALE ENVIRONMENT 360 The frozen layer of soil that has underlain the Arctic tundra for millennia is now starting to thaw. This thawing, which could release vast amounts of greenhouse gases, is already changing the Arctic landscape by causing landslides, draining lakes, and altering vegetation. BY ED STRUZIK • JANUARY 21, 2020 Canadian scientist Philip Marsh and I were flying along the coast of the Beaufort Sea, where the frozen tundra had recently opened up into a crater the size of a football stadium. Located along the shoreline of an unnamed lake, the so-called thaw slump was gray, muddy, and barren, in sharp contrast to the brilliant russet and gold of the surrounding autumn tundra. These retrogressive thaw slumps, or landslides — formed as warming temperatures rapidly thaw permafrost — are increasing across the Arctic, including the kilometer-long, 100-meter-de

A permafrost slump, the size of a football stadium, on the shore of an unnamed lake in the Canadian Arctic. Ed Struzik for Yale Environment 360 Canadian scientist Philip Marsh and I were flying along the coast of the Beaufort Sea, where the frozen tundra had recently opened up into a crater the size of a football stadium. Located along the shoreline of an unnamed lake, the so-called thaw slump was gray, muddy, and barren, in sharp contrast to the brilliant russet and gold of the surrounding autumn tundra. These retrogressive thaw slumps, or landslides — formed as warming temperatures rapidly t

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