water pollution

A river gradually becomes depleted as more and more people use its resources to build cities, transport goods, and handle sewage.

The Sherlock Street detectives concern for the environment instigates a search for the source of pollution in a local stream.

Takes readers on a mission around the globe exploring how people use water and the challenges we face keeping it clean.

Simple text and photographs describe why it's important to save water and simple ways children can save water.

Discusses the benefits of water, and looks at the harmful effects and methods of preventing water pollution.

An environmental history of the Nashua River, from its discovery by Indians through the polluting years of the Industrial Revolution to the ambitious clean-up that revitalized it.

Simple text and photographs describe water pollution, how it spreads, and its effects.