Arctic sea ice

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Sea ice extent reached a new record low on August 27, 2012 and continued to decline. The last six years...

Readers often ask us, “Why does your sea ice map show sea ice where there is none?” Sometimes our Daily Sea Ice Extent images show sea ice in a particular area, but when readers who live in those...

Arctic sea ice was at record highs in the Bering Sea this spring, and near the long-term average for...

The Arctic Ocean has lost more than 30 percent of its summer ice cover in the last thirty years. Scientists have...

On July 20, 2011, the U.S. Coast Guard Cutter Healy traveled through a break in the sea ice and melt ponds in...

Each spring, NSIDC scientists announce that the Arctic sea ice cover has likely reached its maximum extent, marking the beginning of the melt season. What is the sea ice maximum and why does it...

The Arctic Oscillation (AO) is a large-scale climate pattern that influences weather throughout the Northern...

This satellite image from November 8 shows the hurricane-like storm that hit Western Alaska earlier this month. Credit:...

Arctic sea ice extent for September, 2011 was the second-lowest in the satellite record. However, other data...

This photo, taken during the NASA ICESCAPE mission in summer 2011, shows melt ponds on the surface of...

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