Earth is losing 39 cubic miles of ice per year

Variations in the gravitational tug of the Earth -- say, from more or less ice on the surface of Greenland -- push the satellites apart or pull them together, and they can measure these changes in distance to degrees as small as 1/1000th the width of a human hair. And that is how they know that we are completely f*cked.

NOVA Online | Antarctic Almanac

Antarctica has some seven million cubic miles of ice, representing some 90 percent of the world's total.

Antarctica Climate Number: 7.2 million cubic miles | Earth Gauge