Climate Change Science
Temperature profile from one of 21 deep boreholes in the NPRA array showing the response of permafrost to the significant warming of the 1990's.
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U.S. Department of the Interior | U.S. Geological Survey URL: http://geochange.er.usgs.gov/poster/permafrostchart.html Page Contact: ESD Webserver Team Page Last modified: Tue 10-Feb-2009 10:38:58 MST