Book excerpt: The Ecological Transition studies the relationships between humans and the physical environment. It also assesses some converging approaches in cultural anthropology, including cultural ecology, economic anthropology, social exchange, and behavioral adaptation. Comprised of ten chapters, this book focuses on ecological transition, which refers to the process by which humans incorporate nature into society. It discusses how to formulate a policy-oriented cultural ecology and looks at the ecological transition as material evolution and as a problem of equilibrium. The succeeding chapters review some of the contributions of cultural ecology, including its successes and failures. Finally, the book examines the concept of adaptive and maladaptive actions in human ecology. This book is useful for anthropologists who are interested in cultural-ecological research and its implications in public policy.