'Life Support' brings together the best medical information available on the implications for human health of the global environmental crisis. Written by prominent physicians and public health experts who see environmental degradation as a serious threat to public health, it provides essential information for health professionals, policymakers, concerned citizens, and environmental activists. The book, which is a sequel to the 1993 Critical Condition, covers a broad range of topics, including air and water pollution, population and consumption, climate change, ozone depletion, ultraviolet radiation, biodiversity loss, habitat destruction, war, and vulnerable populations (workers and children). It also discusses such controversial topics as environmental endocrine disruption and risk assessment. The focus is on solutions. Each chapter ends with specific recommendations for actions to solve particular environmental health problems. Underlying the book are three major themes - that the habitat is an important determinant of human health, that prevention of human illness must involve protection of the environment, and that well-informed physicians can and should communicate with the public and policymakers about environmental hazards.