Discusses the life, training, and skills of zoologist Randall S. Wells who studies bottlenose dolphins in Florida and relates information he has learned about dolphins during his research.
Discusses the discovery, formation, transportation, and effects on plant and animal life of acid rain and how economic and political forces have delayed action needed to reduce this slow poison from the sky.
Describes the phenomenon of garbage, what it can indicate about particular cultures, and past and present problems and methods of solid waste disposal and management.
Presents an overview of environmental factors that affect human health, assesses their dangers, and discusses the scientific and political complexities concerning a healthful environment.