Glaciers can erode landscapes swifter than rain and rivers.

侵蚀地形速度， 远快於雨水和流。

On December the 1st 1990, construction workers from Britain and France drilled through the last section of rock separating the two halves of the service tunnel,  linking Britain to mainland Europe for the first time since the last ice age.

1990年12月1日，英、法两国建筑工人钻穿了最后一阻隔隧道岩石，使英国与欧洲大陆实现了自上一时代以来首次连接。

The Yam period coincided with the end of the last ice age.

“甘薯”时期正好赶上最后一世纪末期。

They readily admit, however, that little is understood yet as to the reasons why ice age artists created their interesting and detailed paintings.

但是，们欣然承认，对于时代艺术家们创造出这么有趣又详尽画作原因，们目前几乎没有任何思路。

Ice Age 2 would be the sequel to Ice Age.

《世纪 2》将是《世纪》续集。

Feel the bitter chill of global ice ages.

感受全球性时期酷寒。

We know that happened at the end of the last ice age.

我们知道这曾发生在最后一时代末期。

Picky glaciologists might argue that what Mr Norphel is creating are not, strictly speaking, glaciers.

吹毛求学家们也许会认为诺菲尔先生并没有造出严格意义上川。

Russian scientist Sergey Zimov is recreating an eco-system from the ice age.

俄罗斯科学家斯格里·希莫夫正在重新创造时期生态系统。

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

但是如果这发生在以及海洋浮时候呢？

There have been at least four major ice ages.

至少有四主要时代。

And some of them outlived the Ice Age extinction.

其中一些物种在时期灭绝中幸存下来。

The one central defect of Agassiz's theory was that his ice ages had no cause.

阿加西斯理论有一致命弱点，就是不能解释导致时代出现原因。

Researchers think that ground sloths could have been pushed out by an oncoming ice age, or competition with other species, maybe humans, who arrived in the region around the time most of the sloths went extinct.

研究者认为，大懒兽灭绝可能是由于即将到来时代，或是由于与其它物种间竞争，也可能是由于人类，因为在同一时期， 人类来到了这里。

But also I think those Ice Age conditions were critical as well.

但我认为当时时代客观条件也是极为关键。

These changes help us understand details about the development of Ice Ages.

这些改变帮助我们了解时代发展详细情况。

Holocene started about 11,700 years ago at the end of an ice age.

全新世开始于大约11700年前时代末期。

Most likely got stuck here during the ice age.

很有可能是在时代时候被困在了这里。

Now, some people were also afraid it could tilt the earth on its axis in a dangerous way or cool down Europe to the point there would be a new Ice Age.

现在，有些人还担心它可能会以危险方式导致地球自转轴倾斜，或者使欧洲温度下降，从而引发新时期。

But today, we're warming the planet at an unprecedented rate — about 10 times faster than the average warming following historic ice ages, giving animals little time to adapt.

但今天，我们正以前所未有速度使地球变暖——大约比历史上时代之后平均变暖速度快10倍，动物几乎没有时间适应。