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在上个世纪末,科学家们经过大量的调查研究,作出了不少大胆的规划和设想,为人类改造自然描绘出一幅幅美好的前景。他们预言,21世纪人类将出现十大奇迹。1、白令海峡大坝白令海峡位于前苏联楚科奇半岛与美国阿拉斯加之间,宽约85公里,深约40-50米。计划建造的白令海峡大坝,将切断从太平洋流入北冰洋的寒流,然后用巨大的抽水机群每天从北冰洋抽出500立方公里的水量送入白令海。这样,北冰洋的水位每年下降20米,不消10年,就可使北冰洋的冰层全部
At the end of the last century, scientists conducted a lot of investigations and studies and made a lot of bold plans and plans to create a beautiful prospect for mankind to transform nature. They predicted that there will be ten miracles in the 21st century. 1, the Bering Strait Dam Bering Strait is located in the former Soviet Union Chukchi Peninsula and the United States between Alaska, a width of 85 km, about 40-50 meters deep. The planned Bering Strait dam will cut off the cold currents flowing into the Arctic Ocean from the Pacific Ocean and then use the huge pumping unit to draw 500 cubic kilometers of water each day from the Arctic Ocean into the Bering Sea. In this way, the Arctic ocean level dropped 20 meters a year, without more than 10 years, you can make the Arctic ice all