Antarctica’s ice sheets are melting faster — and from beneath

This image taken in 2012 shows part of the Crosson Ice Shelf (center left) and Mount Murphy (foreground) on the western edge of Antarctica. Thwaites Ice Shelf lies beyond the highly fractured expanse of ice (center). (Photo by John Sonntag/Nature)
Antarctica’s ice has been melting, most likely because of a warming climate. Now, newly published research shows the rate of melting appears to be accelerating.
Antarctica is bigger than the U.S. and Mexico combined, and it’s covered in dee