This book tracks the growth of environmental awareness and conservation in the United States through the major trends of the 20th century, and establishes a philosophical ground for protection of the environment. It records a major cultural shift in the thinking of this nation, and provides guidelines for its continuation.
This book tracks the growth of environmental awareness and conservation in the United States through the major trends of the 20th century, and establishes a philosophical ground for protection of the environment. It records a major cultural shift in the thinking of this nation, and provides guidelines for its continuation.