Description: Water for All examines the different water sources in the world, how water is treated, and the problem of supplying clean water to the world's increasing population. Readers learn about the water cycle, how water is used in farming and industry, and how salt water can be made into fresh water using the desalinization process. Water taken from these sources still needs to be treated before it is safe and clean. The author explains the various methods used at treatment plants, and other methods, such as emptying sewage into carp ponds where it is broken down organically. Separate chapters look at the problem of pollution from fertilizers, household cleaners, and pesticides; methods of irrigating crops; how global warming may cause water shortages; and what people can do on a local and global scale to help.

Please Wait