全球水资源危机与可持续发展

世界环发大会后五年，联合国及有关国际组织指出，全球生态环境不仅未根本改观，反而有所恶化。早在20年前就有人预言，继能源危机之后，水资源危机将成为新的危机点，不幸言中。世纪转换之际，水资源问题又成为影响和制约人类生存与发展的危机因素。1全球环境问题中的水资源危机1．l水资源问题现状广义上的水资源是指可为人类所用的水源。它包括海洋、湖泊、河流、地下水、土壤的水分、冰川和大气水蒸气。据科学家测算，全球的水量约13．86亿立方公里。其中人类难以和不适宜直接食用的海水占97．2％，淡水总量仅占2．53％。狭义上的水资源…

The Problem of Global Water-Resourcesand Sustainable Development

The essay begins with an analysis of the properties of water resources so as toexplain the causes of the global crisis of water resources. A further analysis is also made onthe causes of the crisis and the effects it has brought about. The significance and value ofwater resources to the development and existence of human society should be realized froma strategic altitude. The problem of water crisis has aroused international concern withnecessary actions taken in order to achieve sustainable development.