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The Arctic 北极海域 Tequila sunset 龙舌兰日落 Global warming may make the northernmost oceanless productive, not more so 全球变暖对北极海域生产力的负面影响 ON SEPTEMBER 16th 2012, at the height of the summer melt, the Arctic Ocean s ice sheethad shrunk to an area of 3.41m square kilometres, half what it was in 1979. 2012年9月16日，随着夏日的深入，北冰洋的冰原面积缩减到341万平方公里，该数字仅为1979年同期面积的二分之一。 And its volume had shrunk faster still,to a quarter of what it was in 1979, for the sheet is getting thinner as well as smaller. 同时，就冰原体积而言，目前北极冰原的体积仅为1979年的四分之一，其融化速度之快可想而知。如今的北极地区，不仅冰原的面积在减少，其体积也在缩小。 One culprit is global warming, which is fiercer at the poles than elsewhere. 而这一现象的罪魁祸首便是全球变暖。同时，相比于其他海域而言，全球变暖对两极地区的冲击尤为明显。 The world s average temperature in 2012 was nearly 0.5C above the average for 1951-80. 与1951-1980年相比，2012年全球均温上涨了0.5， | 
