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Nearly all Alaskan glaciers are thinning

WASHINGTON (UPI) -- The U.S. Geological Survey says nearly all Alaskan mountain range and island group glaciers are experiencing significant retreat, thinning or stagnation.

USGS research geologist Bruce Molnia says the deterioration is especially evident in glaciers at lower elevations and, in some places, the changes began as early as the middle of the 18th century.

The study, entitled "Glaciers of Alaska," was written by Molnia and represents a comprehensive overview of the state of Alaska's glaciers at the beginning of the 21st century.

Alaskan glaciers are found in 11 mountain ranges, one large island, one island chain and one archipelago.

Richard Williams Jr., USGS emeritus senior research glaciologist, said the 550-page volume will serve as a major reference work for glaciologists studying glaciers in Alaska for decades to come.

The book is available in print, as well as online in PDF format at http://pubs.usgs.gov/pp/p1386k/pdf/1386K_complete.pdf.



Copyright 2008 by United Press International

This news arrived on: 10/07/2008
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