The sea ice melts into open ocean.

冰面融化成广阔的海洋。

It starts to melt the sea ice.

海面的冰层开始融化。

Sea ice the size of Greenland is missing.

面积有格陵兰岛大小的海冰消失了。

Sea ice is now drifting faster.

“现在海冰漂得更快了。”

Bigger storm surges as sea ice melts faster.

风暴也更汹涌，海冰融化速度加快。

Polar bears need sea ice for sustenance and survival, period.

可以这么说，北极熊需要海冰来维持生计。

Researchers link this loss to the lack of sea ice.

研究人员认为北极熊数量减少与海冰的减少有关。

Scientists are watching Antarctic sea ice shrink to record lows.

科学家观测到南极海冰面积缩小到历史最低。

But a warming climate is reducing the amount of sea ice.

但气候变暖使得海冰的数量正在减少。

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

实际上，北极的海冰盖融化速度比预期的要快。

Arctic sea ice is melting far faster than climate models predict. Why?

北极海冰正在以比气候模型所预测的快得多的速度融化，为什么？

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？

As winter closes in, the sea ice spreads south to Hudson Bay.

随着冬季的临近，海冰逐渐向南扩散到哈德逊湾。

Sea ice levels in the area around the North Pole have decreased.

北极地区的海冰水平不断下降。

The whales eat krill, which feed on microscopic plants in sea ice.

鲸鱼以磷虾为食，而磷虾以海冰中的微小植物为食。

Connections between declining sea ice and wildfire weather have been made before.

海冰减少和野火天气之间的联系早已有之。

There's no physical pole because it keeps drifting on the sea ice.

没有物理极点，因为它一直漂浮在海冰上。

All around the Arctic Circle, the sea ice is beginning to break up.

整个北极圈沿线，海冰都开始破裂。

The bears need sea ice in order to move around and find seals.

北极熊需要海冰才能四处活动和寻找海豹。

Last year, NASA reported that Antarctic sea ice reached a new record size.

去年, 美国国家航空航天局表示南极的海冰面积创下新高。