"Summertime sea ice in the Arctic Ocean is on track for shrinking by 40 percent below 1980 and 1990 levels by the year 2050, say oceanographers. That's twice as fast as the rate of loss estimated in the most recent assessment by the Intergovernmental Panel on Climate Change (IPCC)."
The Old Model
This NOAA illustration showing one model of future sea ice loss in the Arctic is not even the worst case scenario. A new report by scientists taking a closer look at the Intergovernmental Panel on Climate Change report on ice loss suggests the ice may be melting at twice the rate predicted by the panel.