BBC纪录片《冰冻星球》履于薄冰第9期:北极比较大的冰原

[00:00:54]This cycle of warming, as huge areas start to absorb rather than 广阔的区域并不反射而是吸收热量 [00:04:53]reflect heat, is the main reason why the Arctic, 因而 和北美面积一样大的北极区域 [00:07:54]a region the size of North America, 变暖速度是地球其他地方的两倍 [00:10:06]is warming twice as fast as the rest of the Earth. 而这个热循环就是罪魁祸首 [00:18:34]So, melting sea ice is a big issue. 正在融化的冰雪是个大问题 [00:21:24]But there's another kind of ice that could have an even more 但还有另外一种冰雪可能会对我们的世界 [00:24:06]dramatic impact on our world. 造成更深刻的影响 [00:27:30]The ice that is found on land. 那就是在陆地上的冰川 [00:32:30]This is fresh water ice, 这是淡水冰 [00:34:36]formed from thousands of years of accumulated snowfall. 是由过去数千年里不断的降雪积累而成的 [00:44:46]This is the front of a glacier, 不管你信不信 [00:47:50]quite a small one, believe it or not. 这是一块非常小冰川的正面 [00:50:35]Glaciers are like rivers of frozen fresh water 冰川就像是冰冻的淡水河 [00:53:48]flowing across the surface of the land. 在陆地上纵横交错 [00:57:15]This one, like most polar glaciers, 像大多数两极冰川一样 这块冰川 [01:00:19]is flowing down from a vast inland ice sheet. 正从一块巨大的内陆冰原上缓缓流下 [01:04:52]And it's what happens to those ice sheets 在这些冰原上发生的变化 [01:07:56]that could radically alter the face of the planet. 会彻底改变地球的面貌 [01:12:40]The Greenland ice sheet is by far the largest in the Arctic. 格林兰冰原是目前北极最大的冰原 [01:16:22]It's two miles thick in places 有些地方有两英里厚 [01:18:39]and six times the size of the United Kingdom. 面积是英国面积的六倍

00:00

00:00

MP3下载 文本下载