Climate Change

The sea ice cover surrounding the continent of Antarctica is on average thinner than Arctic sea ice, and more...

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

These before-and-after photographs show Petermann Glacier in July 2009, before the calving event, and again in...

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

Scientists expect the Arctic to lose most of its summer ice cover by the end of this...

People sometimes wonder if the weather they are experiencing locally, such as the heavy snow that fell in...

A lead or large crack in the ice opens up in melting summer sea ice. A seasonally ice-free Arctic is likely some...

Bright white sea ice reflects light and keeps the Arctic cool. Soot darkens the ice surface and can speed melt...

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