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Home » CurrentEvents

Black September, October Surprise October 2, 2012 11:16 am ER

http://nsidc.org/arcticseaicenews/

Arctic sea ice extent averaged for September 2012 was the lowest in the satellite record, and was 16% lower than the previous low for the month, which occurred in 2007. Through 2012, the linear rate of decline for September Arctic ice extent over the satellite record is now 13.0% per decade, relative to the 1979 to 2000 average. The six lowest September ice extents over the satellite record have all occurred in the last six years. Compared to the 1979 to 2000 average ice conditions, the September 2012 ice cover represents a 49% reduction in the area of the Arctic Ocean covered by sea ice. It is 2.91 million square kilometers (1.12 million square miles), or 45%, below the 30-year average over 1981 to 2010.

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The math is hard. And remember, those massive drops aren’t the difference between winter and summer ice extents, it’s the difference between this summer’s ice, and previous summers.

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Even though fall has started, and the ice is re-forming, there is still less ice on the water now, in early October, than there was in mid August when the previous low ice cover record (2007) was shattered.

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  • Weird Winter? by podrock 2012-10-02 19:51:10
    • One winter, or one year, proves nothing. by ER 2012-10-02 20:02:09
      • As more and more ice melts, it gets to be a really slippery slope. by bowser 2012-10-02 20:16:48
        • Le Chatellier's Principle. by ER 2012-10-03 13:04:05
          • Agree, disagree, and question. by johannes 2012-10-03 17:40:33
            • Look up "sputtering". That's how gas is lost from a planet with a lot of gravity like earth. by alcaray 2012-10-05 13:53:06
              • Sounds about right. The question is? by johannes 2012-10-08 17:04:17
                • The energy for sputtering comes from the solar wind, not from ambient atmospheric temperature. by alcaray 2012-10-08 19:00:58
                  • Look up "Jeans Escape." by TB 2012-10-08 17:16:09
                    • Thank you, found it. by johannes 2012-10-08 20:18:48
      • Sorry, Charlie. End times prophecy says nothing about ice melting. by bowser 2012-10-02 18:10:55
        • Depends who you worship. Fimbulwinter precedes Ragnarok. by alcaray 2012-10-02 20:11:16
          • Pagan! by bowser 2012-10-06 08:23:03
            • (My childhood spent with Marvel comics was not wasted!) by alcaray 2012-10-02 22:07:45
              • Darkness by ER 2012-10-02 20:31:39

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