WATER is a precious commodity - and becoming increasingly scarce as more and more nations become industrialised, and urbanised, which means further supplies are needed.

• 水是地球上最重要的资源之一,随着愈来愈多国家工业化和城市化,人们对水的需求亦日益殷切,而水本身亦变得愈来愈珍贵。