kateoplis:
T: November 1, 1979 - January 31, 1980 B: November 1, 2011 - January 31, 2012 Oldest Arctic Sea Ice is Disappearing | NASA
T: November 1, 1979 - January 31, 1980
B: November 1, 2011 - January 31, 2012
Oldest Arctic Sea Ice is Disappearing | NASA
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