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National Snow and Ice Data Center

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What is the Cryosphere?

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On Friday, 06 February 2015 from 8:00 a.m. to 5:00 p.m. (USA Mountain Time), we will be performing scheduled maintenance, which may cause temporary disruptions to our Web site, applications, and FTP. We apologize for any inconvenience this may cause you.

Arctic Sea Ice News & Analysis

Read year-round scientific analysis and daily image updates of Arctic sea ice. More

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Explore maps of Arctic change from NASA data. More

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Learn how NSIDC is reducing our impact on the environment. More

News

19 March 2015

Arctic sea ice maximum reaches lowest extent on record

Arctic sea ice extent reached its maximum on February 25, 2015 at 14.54 million square kilometers (5.61 million square miles).

22 December 2014

Sensing Our Planet 2014 released, now available in iBooks

Sensing Our Planet 2014 is out and now available in iBooks.

10 December 2014

NSIDC science at AGU highlights sea ice, buried lakes in Greenland, and avalanche mapping

NSIDC scientists present new research on Arctic sea ice extent predictions, buried lakes in Greenland, and avalanche mapping at the American Geophysical Union (AGU) Fall Meeting in San Francisco, California.

1 December 2014