Greenland to raise sea level more than expected

The Greenland icecap will contribute more to rising seas than previously understood, thanks to exposure to warm waters.

Using new technologies, researchers from UC Irvine and NASA were able to chart dozens of miles of deep valleys under the Greenland Ice Sheet for the first time, which are exposed to subtropical Atlantic waters.

The same team last week predicted accelerated glacial melt in West Antarctica.

“This new study takes a quantum leap at filling the remaining, critical data gaps on the map,” said co-author Eric Rignot.