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据科学家估算,地球上的总水量为十三亿八千万立方公里。海洋囊括了十三亿五千万立方公里的水,约占总量的百分之九十七点五以上。如果集中起来,可相当于一个一千五百公里直径的大水球,如果均匀铺在地球表面。平均深度可达二千七百余米。大陆冰帽和高山冰川共蕴藏二千四百多万立方公里的水,占总量的百分之一点七五。假如这些冰体全部融化,大洋水位便会抬高六七十米。大片陆地将沦为海洋。
According to scientists, the total amount of water on Earth is 1.38 billion cubic kilometers. The ocean includes 1.35 billion cubic kilometers of water, accounting for about 97.5% of the total. If concentrated, it can be equivalent to a big water polo of 1500 kilometers in diameter, if evenly spread on the surface of the earth. The average depth of up to 2700 meters. Mainland ice caps and alpine glaciers have a total area of more than 24 million cubic kilometers of water, accounting for 1.75% of the total. If all these ice bodies melt, the ocean water level will raise six or seventy meters. Large land will be reduced to the ocean.