BBC紀錄片《冰凍星球》履于薄冰第9期:北極比較大的冰原

[00:00:54]This cycle of warming, as huge areas start to absorb rather than 廣闊的區(qū)域并不反射而是吸收熱量 [00:04:53]reflect heat, is the main reason why the Arctic, 因而 和北美面積一樣大的北極區(qū)域 [00:07:54]a region the size of North America, 變暖速度是地球其他地方的兩倍 [00:10:06]is warming twice as fast as the rest of the Earth. 而這個熱循環(huán)就是罪魁禍首 [00:18:34]So, melting sea ice is a big issue. 正在融化的冰雪是個大問題 [00:21:24]But there's another kind of ice that could have an even more 但還有另外一種冰雪可能會對我們的世界 [00:24:06]dramatic impact on our world. 造成更深刻的影響 [00:27:30]The ice that is found on land. 那就是在陸地上的冰川 [00:32:30]This is fresh water ice, 這是淡水冰 [00:34:36]formed from thousands of years of accumulated snowfall. 是由過去數(shù)千年里不斷的降雪積累而成的 [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. 這是一塊非常小冰川的正面 [00:50:35]Glaciers are like rivers of frozen fresh water 冰川就像是冰凍的淡水河 [00:53:48]flowing across the surface of the land. 在陸地上縱橫交錯 [00:57:15]This one, like most polar glaciers, 像大多數(shù)兩極冰川一樣 這塊冰川 [01:00:19]is flowing down from a vast inland ice sheet. 正從一塊巨大的內(nèi)陸冰原上緩緩流下 [01:04:52]And it's what happens to those ice sheets 在這些冰原上發(fā)生的變化 [01:07:56]that could radically alter the face of the planet. 會徹底改變地球的面貌 [01:12:40]The Greenland ice sheet is by far the largest in the Arctic. 格林蘭冰原是目前北極最大的冰原 [01:16:22]It's two miles thick in places 有些地方有兩英里厚 [01:18:39]and six times the size of the United Kingdom. 面積是英國面積的六倍

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