Antarctic Sea Ice Extent, Sept. 20, 2014 (IMAGE)
Caption
On Sept. 19, 2014, the five-day average of Antarctic sea ice extent exceeded 20 million square kilometers for the first time since 1979, according to the National Snow and Ice Data Center. The red line shows the average maximum extent from 1979-2014.
Credit
NASA's Scientific Visualization Studio/Cindy Starr
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