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

它是仅次于南极的世界第二大。

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

的边缘叫做架。

They extend from the ice sheet into the water.

它们延伸到水中。

Mars, like Earth, has polar ice caps.

和一样，火星也有极。

It causes the ice to advance and retreat every year.

使得积每年都在扩大和缩小。

Melting ice caps and rising sea levels.

融化的导致海平升高。

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

骨长达150英尺，延伸下来。

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

“极即将融化，”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的什么？

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

南极有着厚重的，下是液态的湖。

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

现在, 看起来这片大陆的正呈现增加趋势。

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

那条川阻碍了南极西部上的其他几个川。

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

东南极拥有世界上大部分的川。

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

如果我想要帮助解决像融化这样的问题呢？

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

丹麦领土上看，的56%都在融化。

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

的积以非凡的速度扩大，一天扩大2.5英里。

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

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。