Permafrost temperatures with depth in a borehole in East Teshekpuk, Alaska (US) taken in 1989, 1995, and 2001 showing significant temperature increase in the upper 40 meters over time.
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Global Warming and Thawing Permafrost
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The Summer 2010 issue of The Earth Scientist
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, includes articles on rivers and snow, classroom planetariums, satellites and oceanography, hands-on astronomy, and global warming.
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