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

在几公里之外，我们看到了第一批浮。

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

好，设想一没有浮世界吧。

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

但是如果这发生在河以及海洋浮时候呢？

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

这些角鲸在南方浮边缘度过冬季。

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

当我倒在一块浮上随处漂流时，你找到了我，我好舰长。

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

诺顿研究了阻碍川融化浮域。

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

这些是从川上掉来浮。

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

，浮群退到哪里，北极熊就跟到哪里。

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

它们在大西洋西北部浮群边沿度过冬天。

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

待到浮融化之时，一年一度夏季迁徙就开始了。

They are permanent floating sheets of frozen freshwater.

它们是永久淡水浮。

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。

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

发现大量重浮 许多大山和大浮。

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

北京浮急剧减少，科学家认为在现在这种温度，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，则在较小域活动，且生活在浮还有裂缝之间。

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

我船只在考查北极时，发现一个男人躺在一块浮上。

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

它寄身于一块浮之上，因此不可能建造一座永久性建筑。

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

这种北极捕食者需要根据海上浮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.

或者你会感到一丝难过，想象到一只在一块正在融化浮上逐渐漂远北极熊。

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

沿着浮边缘狩猎海豹北极熊，以及在此捕鱼海象，都将受到沉重打击。