根据绝大多数专家的看法,许多国家很可能在今后几十年内面临淡水的短缺。这些国家的政府首脑能否找到一条摆脱这类严重危机的出路,人们还将拭目以待。 人类大约有1/3的人口必须解决污水处理或淡水短 According to the vast majority of experts, many countries are likely to face a shortage of freshwater in the coming decades. Whether the heads of state in these countries will find a way out of this grave crisis will remain to be seen. About a third of humanity’s population must deal with sewage or freshwater shortfalls