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Originally Posted by JohnHorb
The question is surely how much of the polar ice caps are on land. If the ice is actually on land above sea level, then, when melted, it will run down to sea level, thus raising the water level.
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The largest glasier in the world is in Antartica, and is contained by the Ross Ice Shelf. The Ross Ice Shelf itself has show signs of loosing its integrity over the last decade or so. (Some of you may remember the peice or sea ice the size of Spain (I think), broke of several years ago.) The glacire behind the Ross Ice Shelf contains several
Billion tonnes of water, and if released into the ocean by the continued breakup or the Ross Ice Shelf, could be the death knell of may coastal cities.