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来源：百度知道 编辑：UC知道 时间：2024/05/21 06:20:45
世界水资源严重不足
随着世界人口的急剧增长，用水量不断增加，加上水污染日益严重，使许多本来可以
利用的淡水资源遭到破坏。目前世界上60%的地区面临供水不足，已有20%的人口难以得到清洁水，50%的人口无法得到卫生用水。许多国家用水紧张，近年来美国、日本及东欧许多国家都出现了水资源不足的问题，甚至连淡水资源比较丰富的俄罗斯与加拿大，有些地区也受到缺水的威胁。非洲的一些国家连年干旱，缺水直接威胁着人们的生存。有人预计，水危机将成为21世纪城市里“最容易引起争端的问题”。
环境问题的全球性
环境问题不仅是某个国家或某个区域的问题，目前已经发展成全球性的问题了。一个地区发生环境问题，影响的范围往往会大大超过该地区。例如，酸雨随着大气的运动，能影响到很远的地区；国际性河流上游被污染，将使河流全流域遭受影响……环境污染问题日益严重，废气、废水甚至固体废弃物都可以从一国转移到另一国。有些环境问题甚至影响着全人类的生存与发展。例如，亚马孙河流域热带雨林的破坏，会对全球的气候产生影响；大气中CO2浓度的升高和臭氧层的破坏，更是威胁着全人类。
Serious shortage of the water resources of the world
Along with the nasty play growth of the population of world, use the water quantity to increase continuously, plus the water pollution increasingly serious, make many originally can
The fresh water resources of make use of encounters the breakage.Currently in the world 60% region faces to supply water the shortage, already having hard 20% population to be sweep the water,50% population can't get the hygiene to use the water.Many nations use the water strain, American in recent years, Japan and many nations of Eastern Europe all appeared the problem of the water resources shortage, even connecting the fresh water resources more abundant Russia and Canadas, the threat that some regions also be subjected to the water shortage.Some nations in Africas are for successive years dry, be short of water directly existence of threaten the people.Someone anticipate, the crisis of water will become the city of 21 centuries in&quo