In our drive to improve human standards of living, we have paradoxically paid scant attention to the need for clean air and water; the impact of acid rain on agriculture, lakes and rivers; the effect of pollutants on the ozone layer; the safe disposal of hazardous wastes, and the relationship between population growth and the environment. It seems that every time governments are faced with an apparent choice between economic development and the protection of the environment, priority is always given to the former. Short-term plans -- dictated by canons of political survival and expediency -- always seem to take precedence over long-term strategies, with politicians and decision-makers deftly relegating environmental concerns to the realm of rhetoric. This book is an effort to better understand the problems faced by our global ecosystems. It is also the result of the authors deep commitment to urge both citizens and their leaders the world over to work together for a better protection of the environment so that our planet may be saved for the present and for future generations.