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What Happens to the Ice on the Edge?
CNN's John Sutter talks to Ian Jocken, a climate scientist who studies melting ice sheets. He says it will take anywhere from 100 years to hundreds or even 1,000 years for the whole piece of ice to collapse. You and I will be long gone by the time that happens, but we need to prepare now," he says. "The hotter the earth gets, the faster it heats up"