Current global warming from greenhouse gases generated by human activities could warm the arctic to levels above the melting point of ice, the study said.
该研究称，人类活动产生的温室气体所造成的当前全球变暖可能使北极暖化程度高于冰的融点。
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Reading about the Jeannette artifacts, Nansen wondered if the strong east-to-west current over the Arctic could be ridden to the North Pole—or at least close. And so an idea was hatched.