This trio of images shows changes between 1979 and 2007 in the average date of melt onset in the spring, the first autumn freeze, and the total average increase in the length of the Arctic sea ice melt season.
This trio of images shows changes between 1979 and 2007 in the average date of melt onset in the spring, the first autumn freeze, and the total average increase in the length of the Arctic sea ice melt season.