Antarctica’s ice is rapidly melting

http://www.cbsnews.com/video/antarctics-ice-sheet-is-melting-6-times-faster-than-in-1979/

A new scientific study found Antarctica is melting six times faster than 40 years ago. The rapid increase in ice melt could trigger a cascade of land-ice into the ocean in the coming centuries. Eric Rignot, lead author of the study and a professor of Earth System Science at the University of California, Irvine, joins CBSN’s Omar Villafranca with more.