Climate Central: It's official: Antarctic sea ice hit its annual winter maximum on Sept. 22, reaching a record area of 7.76 million square miles, the National Snow and Ice Data Center (NSIDC) announced Tuesday.
Antarctic sea ice extent for Sept. 22, 2014 was 7.76 million square miles. The orange line in the figure shows the 1981-2010 average extent for that day, and the black cross indicates the geographic South Pole.
That maximum extent was 595,000 square miles above the 1981-2010 average extent, the NSIDC...