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游客2023-11-05  33
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答案                             Rising Sea Level
    Latest research predicts that the global sea level is expected to rise 9 to 88 centimeters by 2100, with a "best estimate" of 50 centimeters. This is due to global warming which is causing the ice caps to melt.
    This great rise of close to one meter would threaten huge areas of low-lying coastal land as well as major cities such as London, New York and Tokyo.
    In many places, 50 centimeters would see entire beaches being washed away. On low-lying Pacific islands, the highest point is only two or three meters above the current sea level. If the sea level was to rise by 50 centimeters, big parts of these islands would disappear under the water.
    Even if they remain above the sea, many island nations will have their supplies of drinking water reduced because sea water will pollute their freshwater.
    There are also tens of millions of people living in low-level coastal areas of southern Asia, such as the coastlines of Pakistan and India, who would be in danger.
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