Tuesday, September 11, 2007

Ice melt in Greenland

There's been plenty of discussion here and elsewhere about the current record lows for sea ice in the Arctic. A few days ago, the Guardian reported about evidence for rapid melting in Greenland as well this summer. The article reminded me of this picture I took in July of this meltwater pool on the slope of a east-flowing glacier in SE Greenland.

The IPCC's method for estimating of sea level rise do not account some of the processes that are now being observed and described in the article, particularly how meltwaters appear to be flowing to the bottom of the ice, effectively lubricating the path to the sea. There's a big push afoot to incorporate these more complex ice melt processes into global climate models. In a few years, the model predictions for sea level rise over the next century could be quite different.

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