We are fast becoming a global society. Flagging economies and social problems, environmental pollution and ecological destruction are burdens that fall on the shoulders of our international community. As we stand on the threshold of the twenty-first century, we search for cooperative answers to take us through the next millennium, and are confronted with the task of establishing a future that is both environmentally and socially sustainable. Earth at a Crossroads offers an integrated view for the development of human society within the natural environment on which it depends for support. The book stresses the dynamic and interconnected nature of feedback processes, traces possible future paths of societal development and their impacts, determines their sustainability, and points at necessary changes. Two alternative visions of the future are presented: Path A resulting from continuation of current trends, and a contrasting Path B that would result from adhering to principles of sustainability and protection of the natural system in the interests of future generations. This book will become an important reference in the discussion of global society's path into the next millennium. It will be a valuable read for anyone looking forward to a healthier world, and a well-thumbed resource for environmental scientists and policy-makers. Hartmut Bossel received his Ph.D. in mechanical engineering at the University of California at Berkeley. He is the author of ten books and over 300 papers. His research includes studies of agricultural policy for the German Bundestag.