标签：北冰洋冻土带 相关文章
There are very few people living in the Arctic. You would not expect to find much garbage there. Recently, however, some German researchers have discovered a lot of plastic, glass and other waste in the sea there. They say that there is twenty times
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[00:04.60]Saving the Rainforests for Future Generations [00:07.77]为子孙后代救救热带雨林 [00:10.95]Rainforests are being cut and burned from Brazil to Indonesia [00:14.93]从巴西到印度尼西亚，热带雨林正在以极快的速度被砍伐和烧毁， [00:18.91]at such a
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Life on the Tundra Tundra is the name given to the low, marshy plains of Europe, Siberia, and North America that border on the Arctic Ocean. In Alaska, the vast, cold region known as the
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Tundra is the name given to the low, marshy plains of Europe, Siberia, and North America that border on the Arctic Ocean. In Alaska, the vast, cold region known as the Northern Slope is part of the tundra. Nature sets harsh terms for survival in this
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路易斯 皮尤讲述了他游泳横越北极这一创纪录的壮举。他仅着游泳裤，勇渡北冰洋，来唤起世人对正在消融的冰盖的重视。其中有他惊心动魄的游泳片段-- 和他对在刺骨的冷水中游泳经历的直
TED公开课:(不只是)男人经