As the field of environmental science continues to evolve, this highly readable guide presents a full spectrum of views and information to help readers evaluate issues and make informed decisions. Reflects the changing environmental scene worldwide, with a wide range of viewpoints and information from the latest sources. Places new emphasis on issues such as emerging diseases like avian flu; the 4 th World Water Forum; the "gene revolution;" the Endangered Species Act controversy; restoration of the Everglades, and the 2005 Global Forest Resources Assessment. Strives for a balance between pure science and the political, social, and historical perspectives of environmental affairs. For those interested in learning more about environmental science.