If you don't have enough to worry about already, then you should take note that a piece of Antarctica's Larsen B ice-shelf, larger than the state of Rhode Island, recently broke off. Since the ice was already afloat before it broke away, there will be no effect on the sea-level. However, the ice shelves act as a dam, holding back the flow of ice from the continent. Scientists estimate that the continental ice being held back by just the Ross ice shelf could amount to a sea-level rise of about 5 metres.
As Bill Cosby said: "How long can you tread water?"
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