Glacial retreat. Image 2 of 2. Muir Glacier, Glacier Bay National Park, Alaska, in 2005. Compared to a photograph taken from the same point in 1902 (E
Glacial retreat. Image 2 of 2. Muir Glacier, Glacier Bay National Park, Alaska, in 2005. Compared to a photograph taken from the same point in 1902 (E235/394), the glacial ice has completely disappeared from view by 2005. Glaciers are large, slow-moving expanses of ice, formed from compacted layers of snow. They are sensitive to climate change and in recent years most have retreated dramatically. The National Snow and Ice Data Center (NSIDC) is a US body that supports research into snow, ice, glaciers, frozen ground and climate interactions that make up the Earth's cryosphere. The World Data Center for Glaciology (WDC) in Boulder, USA, is responsible for archiving all available glaciological information.
Size: 4512px × 3886px
Photo credit: © BRUCE F. MOLNIA, NSIDC, WDC/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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