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Thursday, October 28, 2010

Photo: Mystery Glaciers Growing as Most Others Retreat


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Two South American glaciers (including the Perito Moreno glacier, seen above on October 16, 2003) have been growing, although their neighbors have shrunk due to a warming climate.

Scientists have offered various theories for their expansion, including periodic "glacial surges," but the cause remains a mystery.

Photograph by Natacha Pisarenko/AP