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7 countries battling water issues

By: Katherine Butler on Aug. 31, 2012, 11:07 a.m.
Chile as seen from space

Photo: NASA/GSFC/MITI/ERSDAC/JAROS,and U.S./Japan ASTER Science Team

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Chile’s retreating glaciers

On May 2, 2000, this false-color image of a Patagonian glacier was taken by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). Vegetation is signified by red in this photo. A recent study of the ice fields in Patagonia reveals that ice fields are retreating because of climate change — but not entirely because of warming temperatures.


Sébastien Bertrand of Renard Centre of Marine Geology, Ghent University in Belgium led a study of the glaciers. As he told Science Daily, the retreat also “seems to be driven by a decrease in winter precipitation, snow, rather than by an increase in temperature.” Experts expect this revelation to improve scientific understand of how climate change is impacting these glaciers.