这项大胆的试验旨在探究
[00:04:10]under the ice sheet affects the speed with which the glaciers
在冰原底下 水的流动是怎样影响
[00:07:49]flow from it, down to the sea.
冰川流向大海的速度
[00:10:36]The theory is that the water is acting as a lubricant.
原理是 水起到了润滑的作用
[00:13:52]So, the more water there is, the faster the glacier flows.
所以水越多 冰川移动的速度就更快
[00:19:50]To the naked eye, glaciers don't appear to move at all.
肉眼看来冰川好像岿然不动
[00:24:03]But move, they do.
但它确实在移动
[00:27:46]These unique time-lapse images
这些快速回放镜头是近四年来
[00:30:22]were captured over the last four years.
捕捉到的画面
[00:43:37]Through long observations, we now know
通过长时间的观察 我们得知
[00:45:51]that Greenland's ice is flowing down to the sea
格陵兰冰川向大海移动的速度
[00:48:56]twice as quickly as it was 20 years ago.
是二十年前的两倍
[00:54:15]The speed of the glaciers affects our sea levels
冰川的速度影响着我们的海平面高度
[00:57:01]because when they reach the water,
因为当它们遇到了水域
[00:58:56]they break apart into icebergs.
它们就破碎成冰山
[01:01:10]Occasionally, a real mega-berg is born.
很有可能会形成巨大的冰山
