[00:00:01]The break-up of the bergs fills the bays of the Arctic 遍布北冰洋的冰山碎片 [00:07:47]with exquisite ice sculptures. 尽显大自然的鬼斧神工 [00:11:28]It also releases great volumes of cold, fresh water into the sea. 同时 还为海洋带来了大量冰冷的淡水 [00:19:27]Greenland's meltwater 格陵兰的冰川融水 [00:20:17]influences the course of the ocean currents, 影响到洋流的流向 [00:22:41]which, in turn, has an effect on the weather around the world. 而这又会对全球气候构成影响 [00:28:22]The Arctic is closer to home than many of us realise. 很多人不知道 北冰洋离人类家园其实很近 [00:40:14]It includes the northernmost parts of the three continents 它涵盖了三块大陆的极北区域 [00:43:49]on which most of us live - Europe, Asia and North America. 欧洲 亚洲 北美 人类大多居住于此 [00:51:30]The first bare land we reach on our journey south 我们南行之旅遇到的第一片荒原 [00:54:57]is a bleak treeless wilderness known as tundra. 就是寸草不生的所谓"冻土带" [01:01:25]Each spring, animals travel up from the south, 春季 动物从南部向北迁徙 [01:04:40]to be ready for the rich grazing 春水融融下丰饶的牧草 [01:06:49]that will be unveiled by the spring melt. 唱出了生之召唤 [01:10:52]For the caribou, 对驯鹿来说 [01:11:50]the timing is critical. 时机至关重要 [01:13:20]Arrive early and a winter storm could kill you. 到来过早便会被暴风雪所吞噬 [01:16:24]Delay too long and you may fail to lay down the fat 到来过晚便无法蓄积足够的脂肪 [01:19:27]needed to survive a polar winter. 挨过极地的寒冬

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