EARTH'S ANTARCTIC ICE SHEET
For millions of years, Antarctica, the frozen continent at the southern end of the planet, has been encased in a gigantic sheet of ice. Recently, the Gravity Recovery and Climate Experiment (GRACE) satellite has been taking sensitive measurements of the gravity for the entire Earth, including Antarctica. Recent analysis of GRACE data indicate that the Antarctic ice sheet might have lost enough mass to cause the worlds' oceans to rise about .05 inches, on the average, from between 2002 and 2005. The picture was taken on the Riiser-Larsen ice shelf in December 1995. (UPI Photo/NASA/GRACE team/DLR/Ben Holt Sr.)
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