Arctic sea ice – 2013

north_pole_groupWalt Meier, research scientist at the National Snow and Ice Data Centre at the University of Colorado where the research was carried out, said global warming had caused the ice to retreat dramatically in the last two decades.

The six lowest recordings of sea ice cover were all recorded in the last six years. He said thinner sea ice is less likely to survive the summer and predicted the Arctic Ocean will be effectively ice free sometime between 2020 and 2040, although it is possible it could happen as early as 2013.
The Telegraph (UK), 7 Apr 2009