It is the world's second-largest body of ice, after the Antarctic Ice Sheet.

它是仅次于南极冰的世界第二大冰。

The edges of an ice sheet are known as ice shelves.

冰的边缘叫做冰架。

They extend from the ice sheet into the water.

它们从冰延伸到水中。

Mars, like Earth, has polar ice caps.

和地球一样，火星也有极地冰。

It causes the ice to advance and retreat every year.

使得冰每年都在扩大和缩小。

Melting ice caps and rising sea levels.

融化的冰导致海平升高。

Ice keels as long as 150 feet extend down from the ice sheets.

冰骨长达150英尺，从冰延伸下来。

" The polar ice caps are going to melt, " she wrote.

“极地冰融化，”她写道。

28. What does the latest information reveal about the West Antarctic ice sheet?

问题28. 最新的信息揭露了南极西部冰的什么？

Antarctica has a huge thick ice crust and underneath there is this liquid lake.

南极有着厚重的冰，下是液态的湖。

Now, it looks like the continent's ice sheet is growing.

现在, 看起来这片大陆的冰正呈现增加趋势。

That glacier is holding back several other glaciers of the West Antarctic Ice Sheet.

那条冰川阻碍了南极西部冰上的其他几个冰川。

The East Antarctic Ice Sheet holds the majority of the world's glacier ice.

东南极冰拥有世界上大部分的冰川冰。

What if I want help with a problem like melting ice caps?

如果我想要帮助解决像冰融化这样的问题呢？

Images from the Danish territory show melting across 56 percent of the ice sheet.

从丹麦领土上看，冰的56%都在融化。

The ice grows at an extraordinary rate, advancing two and a half miles a day.

冰的以非凡的速度扩大，一天扩大2.5英里。

The ice caps are melting, Leonard. In the future, swimming isn't going to be optional.

冰在融化呀兰纳德。未来游泳是不可避免的。

Indeed, sea ice cover in the Arctic is melting faster than expected.

实际上，北极的海冰融化速度比预期的要快。

Higher temperatures will cause polar ice caps to mell to less than 50% of what they are today.

高温会导致极地冰融化 50%。

Scientists have declared a climate emergency in response to the melting ice caps.

科学家已宣布气候紧急状况，以应对融化的冰。