A few kilometers away, we see the first ice blows.

在几公里之外，我们看了第一批浮冰。

Well, let's consider a world without floating ice.

好，设想一下没有浮冰的世界吧。

But what if you apply this to glaciers and floating sea ice?

但是如果这发生在冰河以及海洋浮冰的时候呢？

These narwhals have spent the winter further south on the edge of the pack ice.

这些角鲸在南方的浮冰区的边缘度过冬季的。

I was drifting on a piece of broken ice when, dear captain, you found me.

当我倒在一块浮冰上随处漂流时，你找了我，我的好舰长。

Naughten looked at melting, floating areas of ice that hold back glaciers.

诺顿研究了阻碍冰川融化的浮冰区域。

All these bits of glacier that have just fallen off from up there.

这些是从冰川上掉下来的浮冰。

The polar bear has kept up with the retreating ice pack so far.

眼下，浮冰群退哪里，极熊哪里。

They have spent the winter along the edge of pack ice in the northwest Atlantic.

它们在大西洋西部的浮冰群边沿度过冬天。

And as it breaks apart, it triggers an annual summer migration.

待浮冰融化之时，一年一度的夏季迁徙开始了。

They are permanent floating sheets of frozen freshwater.

它们是永久的淡水浮冰。

Rescuers and locals tried to free them by pushing ice blocks from their path.

当地居民和救援人员帮助移除浮冰。

Saw much heavy pack ice and a great number of large icebergs, also field ice.

发现大量重浮冰 许多大冰山和大浮冰。

The sharp reduction in Arctic ice is not something scientists expected would happen at today's temperatures.

京浮冰的急剧减少，科学家认为在现在这种温度下，不会发生。

During the winter, they stay in a smaller area and live among the shifting ice and cracks.

在整个冬季，则在较小的区域活动，且生活在浮冰还有裂缝之间。

My ship was exploring the Arctic when we found a man on a piece of floating ice.

我的船只在考查极时，发现一个男人躺在一块浮冰上。

It is located on a shifting pack of ice so a permanent structure is impossible to build.

它寄身于一块浮冰之上，因此不可能建造一座永久建筑。

The Arctic predator needs sea ice to move around and find spots where they can catch prey.

这种极捕食者需要根据海上的浮冰四处流动来确定狩猎地点。

Or maybe you feel a bit sad, imagining a polar bear floating away on a melting ice floe.

或者你会感一丝难过，想象一只在一块正在融化的浮冰上逐渐漂远的的极熊。

Polar bears, which hunt for seals along the ice's edge, and walruses, which fish there, will both be hard-hit.

沿着浮冰边缘狩猎海豹的极熊，以及在此捕鱼的海象，都将受沉重打击。