This Earth Observatory webpage provides a description of how global warming will affect sea ice and precipitation. Also, the text describes the "positive feedback" through which melting of ice sheets or glaciers can increase the rate of global warming.
This webpage is part of NASA's large Earth Observatory collection of features, images, global maps, and news items.
%0 Electronic Source %D 2009 %T Ice over the Poles %I Goddard Space Flight Center %V 2014 %N 22 December 2014 %9 text/plain %U http://earthobservatory.nasa.gov/Features/PolarIce/polar_ice2.php
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