Pedersen Glacier, Alaska, in 1920

Pedersen Glacier, Alaska, in 1920

E235/0400

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Caption

Glacial retreat. Image 1 of 2. Pedersen Glacier, Kenai Fjords National Park, Alaska, in 1920. 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. See image E235/401 for a photograph taken from the same viewpoint in 2005. 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.

Release details

Model release not required. Property release not required.

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