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Originally Posted by tufLTD
They say that global warming will caused the polar ice caps to melt & sea levels to rise.
But here's my question. Doesn't water expand when frozen? Therefore, if the ice caps melt, wouldn't the sea levels drop?
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Quite right, however as Ice floats, the expanded part stays above the water.
Try this experiment: Get a bowl filled with water and ice. Mark the level of the water. Wait for the ice to melt. See the level has not changed one bit.