Scientists count huge melts in many protective Antarctic ice shelves. Trillions of tons of ice lost. | AP News
Four dozen Antarctic ice shelves have shrunk by at least 30% since 1997 and 28 of those have lost more than half of their ice in that time, reports a new study that surveyed these crucial “gatekeepers’’ between the frozen continent’s massive glaciers and open ocean.Of the continent’s 162 ice shelves, 68 show significant shrinking