His work examining sediment cores from Antarctica's sea floor indicated if the planet were two to three degrees warmer, it would have a dramatic effect on the polar ice sheet.

他从对南极洲海底沉积物的探究工作中得出，如果地球再暖上2到3度，这将会对极地冰盖产生巨大影响。

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While this would be the most diplomatic option for Santa, Magnetic North has since moved off the Polar Ice Sheet and into the ocean, a rather inconvenient place to set up a toy factory.

尽管对圣诞老人来说，这是最圆融的选择，但磁北极自此离开了极地冰原，进入海洋之中，一个比较不方便设立玩具工厂的地方。

youdao

While this would be the most diplomatic option for Santa, Magnetic North has since moved off the Polar Ice Sheet and into the ocean — a rather inconvenient place to set up a toy factory.

尽管对圣诞老人来说，这是最圆融的选择，但磁北极自此离开了极地冰原，进入海洋之中–一个比较不方便设立玩具工厂的地方。

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In fact, another recent study posted in Science, concluded that polar ice sheet melting has been massively overestimated.

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But the volume of the Martian north polar cap is less than half that of the Greenland ice cap, and about four percent of the Antarctic ice sheet.

BBC: By BBC News Online Science Editor Dr David Whitehouse