Collapse of Antarctic ice sheet is underway and unstoppable but will take centuries

Darryl Fears of the Washington Post cites two new studies suggesting sea-level rise will be higher and potentially more devastating than earlier projections have noted. A University of Washington study and another authored by Eric Rignot, a professor of Earth science at the University of California at Irvine who was commissioned by NASA, both suggested that the melting is unstoppable and will take place over 200 - 1,000 years and dump several feet of new water into the oceans.