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人类文明的第一行脚印,是踩在湿漉漉的河边的。水,万物之始,生命之源。古希腊哲学家泰勒斯说,世界的本原是水,没有水就没有万物。据统计,地球所拥有的水资源中,有97.5%是海水,而淡水却仅仅只有2.5%。但在这些淡水资源中,又有很大一部分是不能加以利用的。早在1977年召开的“联合国水事会议”就向全世界发出严正警告:水不久将成为一个深刻的社会危机,继石油危机之后的下一个危机便是水。水资源危机正成为目前人类所面临的最主要、最紧迫的环境问题之一。
The first line of human civilization footprints, is stepping on the wet river. Water, the beginning of all things, the source of life. Thalassus, an ancient Greek philosopher, said that the origin of the world is water, and there is no thing without water. According to statistics, 97.5% of the earth’s water resources are sea water, while fresh water is only 2.5%. However, a great part of these freshwater resources can not be utilized. As early as 1977, the “UN Water Conference” issued a solemn warning to the world that water will soon become a profound social crisis. The next crisis following the oil crisis will be water. The water crisis is becoming one of the most important and urgent environmental problems facing mankind today.