国际在线消息:根据联合国日前的一份报告,目前地球上仅有2亿m3的淡水可供人类和生态环境利用,而专家们预计,人类实际上已经利用了地球现有淡水资源的30％～40％。据统计,全世界人口的五分之一,即11亿人目前得不到安全的饮用水,另有24亿人缺乏良好的卫生设施。每年有500万人因此丧生,其中每15秒钟就有1名儿童死亡。 According to a recent UN report, at present, only 200 million m3 of fresh water on Earth can be used for human and ecological use. Experts expect that mankind has actually used 30% of the earth’s existing fresh water resources ~ 40%. It is estimated that one fifth of the world’s population, or 1.1 billion people, currently have no access to safe drinking water and an additional 2.4 billion lack of good sanitation facilities. As many as 5 million people die each year, of which one child dies every 15 seconds.