Describes the use and misuse of the environment and where we seem to be headed as a species on the planet. Emphasizes the geographic aspects of problems such as air pollution, locational factors, energy and population growth. Starts with an overview of the modern environmental dilemma and the factors which need to be examined in order to gain an understanding of the problem. Details the world's air and water systems including their use, physical modification and pollution by humans. Features a review of our planet's open lands and the effort to preserve and manage them.