Rising Arctic temperatures have reduced floating ice cover by 20 percent over the last three decades.

在近三年间，北极地区不断上升的气温已经融化并减少了20%的浮动冰层覆盖。

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The floating ice island could become frozen in place over winter or escape into the waters between Greenland and Canada.

到了冬天，这座浮冰岛屿可能会在某地冻结"抛锚"，也可能"擅闯"格陵兰和加拿大之间的海域。

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"We now know that there is relatively warm water beneath this floating ice, " observed Dr Dutrieux, "so this warm water could have been able to melt the base of the ice shelf.

“我们现在知道，这块浮冰下面水温相对较高，”杜特里奥博士观察评论说，“所以这些温暖海水可能会融化冰架的底部。

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Since the total mass of the ocean and ice remains unchanged during the melting process, this has often led to the erroneous assumption that sea level will be unaffected by the melting of floating ice, say geologists David Holland and Adrian Jenkins.

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