The very survival of the planet is at risk: human misuse of natural resources and disturbance of natural environmental systems is pushing the Earth to the limits of its capacity. This text is a comprehensive introduction for environmental study, explaining how the environment functions, how environmental systems relate, and the ways in which people and environment interact. Focussing particularly on the environmental impacts of human activities, the book explains the ways in which an understanding of basic physical principles can help us to use the environment and its resources. Three...