September 27, 2012
Crossing the Line: Satellite data reveals how the new record-low Arctic Sea ice coverage, from Sept. 16, compares to the average minimum coverage over the past 30 years (in yellow). Sea-ice maps use data from NASA's Nimbus-7 satellite and the Defense Meteorological Satellite Program.
Stories this photo appears in:
Al Gore rallies citizen deputies to break through climate-change denial while there’s still (a little) hope.
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