7 The worst possibility of all/is that something happens to the ice-cap covering
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Greenland. This contains about 10% of the world's fresh water. If parts of it melted, sea
levels could rise by a lot more than today's estimate of 74cm by the end of the century.
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At
the moment, the risk of this happening is hard to assess because data is difficult to gather.
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But loss of ice from Greenland)is speeding up.
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What to do about all this)is another question. Efforts to ease global warming by cutting
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8
35
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greenhouse gas emissions remain essential. But/the state of the Arctic)shows that humans
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cannot simply undo climate change. We will have to adapt to it.
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[出典)“Polar bare: The Arctic as it is known today is almost certainly gone," from The Economist,
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Apr 29, 2017. Reproduced with permission of The Economist Group Limited.
