ecology

Explores the hazards to the environment and the coastal estuaries of Puget Sound and the Chesapeake Bay as a result of contaminated runoffs from industry, agriculture, and urban development in the region.

Nature writings of Aldo Leopold, one of the foremost conservationist of our century.

Describes some of the exotic plants and animals that live in the cloud forest of Costa Rica, and discusses some environmental threats faced by this region.

Photographs and text provide information about life and conditions in the cold world of Antarctica.