This monograph explores the dire ecological, social, and economic situations facing mankind through comprehensive analyses of global ecological issues, poverty, environmental stability and regulation, and sustainable development. Drs. Victor Danilov-Danil'yan and Igor Reyf discuss the development of ecology as a science, the increasing concern among scientists and public servants for the unsustainability of current economic and demographic trends, and the dire consequences our planet and civilization are already suffering as a result of the ongoing environmental and social crisis. They also address the philosophical implications of the crisis, and suggest possible solutions. The book conveys complex objects of study, namely the biosphere and the harmful anthropogenic processes it has been experiencing for decades, so that the work is accessible without omitting key components of the subject matter. Readers will learn about the social and economic contributors to a threatened biosphere, the mechanisms that maintain the stability of the global environment, and the scales at which sustainable development and preservation can be applied to initiate environmental regulation. Though intended to appeal to the general public and non-specialists, environmental researchers, organizations involved in sustainable development and conservation, and students engaged in ecology, environment, and sustainability studies will also find this book of interest.