More than a billion people in developing countries lack access to clean water; more than two billion have no access to basic sanitation. Five to six million people, mostly children, die every year due to waterborne diseases, such as diarrhea, and air pollution.
全球60亿人口中有50亿生活在发展中国家。而这些国家所面临的环境挑战更为艰巨。在这些国家，环境直接与人类发展-及贫困相连。有10亿多的发展中国家人口缺乏清洁的水源；20多亿人口没有基本的卫生设施。每年有5至6百万人，多数是儿童，死于诸如痢疾一类的水传播疾病和空气污染。