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再过几十年,生命科学家也许在做这样一件事:通过基因拼接创造出一种新人类,这种人像骆驼一样具有极高的耐旱性。这可能不是笑话,因为人类正面临缺水的危机。中国一直是水资源匮乏的国家,水将是未来发展的关键。那么到21世纪的中期,中国究竟缺多少水呢? 根据《中国21世纪议程》,2000年中国人口达到13亿,2030年人口将达到16亿左右,其中城市人口7.5亿左右,农村人口8亿左右。另据测算,到2030年,我国北方缺水地区工业产值将达到7.2万亿元左右。用以上两个基本
In a few decades, life scientists may be doing something like this: creating a new kind of human through gene tiling that has the same high resistance to drought as camels. This may not be a joke, because humans are facing a crisis of lack of water. China has always been a water-scarce country and water will be the key to its future development. According to “China’s Agenda 21”, by the middle of the 21st century, China will have a population of 1.3 billion in 2000 and its population will reach about 1.6 billion by 2030, of which the urban population will be about 750 million and the rural population will be 800 million about. It is also estimated that by 2030, the industrial output value of the water-scarce areas in northern China will reach 7.2 trillion yuan. Use the above two basic