influence on nature

Discusses the effects of population growth on the environment.

A compilation of essays dealing with world ecological-environmental issues and their political and possible preservational dimensions.

Examines greenhouse effect with supporting information on deforestation, melting ice caps, global warming and other areas of concern.

Contains photographs, text, and four essays on the areas at the edge of the sea.

A geographic survey of the earth's grasslands, their climate, and their ecological importance.

Studies the causes, effects, and consequences of avalanches and landslides. Includes historical facts and patterns, as well as an examination of humankind's role in causing these disasters.