Greenland Ice Cap Melting Fast

New Satellite data shows that the Greenland ice cap is melting faster than previously predicted, says the nation's top climate scientist. We must take immediate action, he says.

How long have we got? We have to stabilize emissions of carbon dioxide within a decade, or temperatures will warm by more than one degree. That will be warmer than it has been for half a million years, and many things could become unstoppable. If we are to stop that, we cannot wait for new technologies like capturing emissions from burning coal. We have to act with what we have. This decade, that means focusing on energy efficiency and renewable sources of energy that do not burn carbon. We don't have much time left.

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