ClimateWire: Melting glaciers in West Antarctica are headed toward "irreversible" collapse, suggesting that rising sea levels this century may be worse than expected, and potentially catastrophic in the longer term, scientists warned yesterday.
Two separate papers -- one in Science and the other from NASA and University of California, Irvine, researchers -- reported similar trends on the western swath of the ice sheet. A half-dozen unstable glaciers there have been accelerating their melt in recent decades,...