跟着老的、厚的冰层让位于新的、薄的冰层(在北极夏日特殊情况融化)，北极冰层(Arctic sea ice)打从2004年来已紧张变薄[06]英国剑桥大学极地物理学研究小组(the Polar Ocean Physics Group)的Peter Wadhams传授说，路程经过过...
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今天的北极冰层比近代地质史上任何时期都少。
Less ice covers the Arctic today than at any time in recent geologic history.
因此，亚洲，欧洲和北美的煤烟排放量会促使北极冰层变薄。
Thus, sooty emissions from Asia, Europe and North America are helping to thin the Arctic ice.
它能够测量南北极冰层的厚度，并精确到厘米—— 一个至今为止首次达到的精确度。
The satellite will be able to measure the thickness of Arctic and Antarctic ice to within a centimetre - an accuracy unmatched until now.
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