This volume is the first systematic, comprehensive and cogent environmental political philosophy. It exposes the relationships between the ever-worsening environmental crises, the nature of prevailing economic structures and the role of the modern state and concludes that the combination of these factors is driving humanity towards destruction. The book analyzes authoritarian, reformist, Marxist and anarchist approaches to the environmental problem. The author argues strongly that only the most radical of political practices can prevent an ecological catastrophe. This is explored through a detailed and original analysis of social relationships, power, the state, anarchism and Third World development. Innovative, provocative anbd cutting-edge, A Radical Green Political Theory will be of enormous value to all those with an interest in the environment, political theory and moral and political philosophy.