![]() ![]() By storage, we mean water that is locked up in its present state for a relatively long period of time. But, in fact, much more water is "in storage" at any one time than is actually moving through the cycle. ![]() ![]() The water cycle describes how water moves above, on, and through the Earth. The Greenland icecap averages almost a mile in thickness and contains about 10 percent of the total ice mass on the globe. Perhaps what is most striking in this picture is the extent of the Greenland icecap - almost the whole island is overlain by a huge and deep (almost three miles deep in places) sheet of ice. The Arctic region holds a massive amount of ice. ![]()
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