There was a period of excessive warmth which melted some of the polar ice.

有段时期温度过高，融化了极地的部分冰层。

《柯林斯英汉双解大词典》

With the temperature rising, polar ice will melt at a faster rate.

随着温度的上升，极地的冰会以更快的速度融化。

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Eventually, Agassiz and others convinced geologists and the general public that a great continental glaciation had extended the polar ice caps far into regions that now enjoy temperate climates.

最后，阿加西和其他人说服了地质学家和普通大众，一个巨大的大陆冰川作用已经把极地冰帽延伸到了现在享受温带气候的地区。

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Warmer temperatures cause water to expand,a phenomenon called thermal expansion, and cause glaciers and polar ice caps to melt.

VOA: standard.2009.11.09

He says this piece of work is more about the melting ice of the Arctic than polar bears.

VOA: standard.2009.12.13

These glaciers are the largest body of ice outside the polar caps.

VOA: standard.2010.01.23

First we were accused of causing melting polar ice caps, rising oceans and sweaty polar bears.

FORBES: He's Baaack!: A Hot New Media Blast From Al Gore

Nobody is currently predicting a full scale polar ice cap melting, not even in worst case scenarios.

FORBES: What Would Be The Best Place To Live If The Polar Ice Caps Melt?

Who cares about deforestation and melting polar ice caps, when it means God is just around the corner?

ECONOMIST: Religious rights