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Figure : thawing-permafrost-in-alaska
Thawing Permafrost in Alaska
This figure appears in chapter 12 of the Climate Change Impacts in the United States: The Third National Climate Assessment report.
The maps show projected ground temperature at a depth of 3.3 feet assuming continued increases in emissions (A2 scenario) and assuming a substantial reduction in emissions (B1 scenario). Blue shades represent areas below freezing at a depth of 3.3 feet and yellow and red shades represent areas above freezing at that depth (see Ch. 22: Alaska for more details). Many Alaska Natives depend on permafrost for ice cellars to store frozen food, and replacing these cellars with electricity-driven freezers is expensive or otherwise infeasible. Permafrost thawing also affects infrastructure like roads and utility lines. (Figure source: Permafrost Lab, Geophysical Institute, University of Alaska Fairbanks).
When citing this figure, please reference Permafrost Lab, Geophysical Institute, University of Alaska Fairbanks.
Copyright protected. Obtain permission from the original figure source.
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