2013 wintertime Arctic sea ice maximum fifth lowest on record

During the cold and dark of Arctic winter, sea ice refreezes and achieves its maximum extent, usually in late Feb. or early Mar. According to a NASA analysis, this year the annual maximum extent was reached on Feb. 28 and it was the fifth lowest sea ice winter extent in the past 35 years.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/G...