Contents -- Foreword -- Preface -- Prologue: Ethical Extension and Radical Environmentalism -- 1. From Natural Rights to the Rights of Nature -- 2. Ideological Origins of American Environmentalism -- 3. Ecology Widens the Circle -- 4. The Greening of Religion -- 5. The Greening of Philosophy -- 6. Liberating Nature -- Epilogue: Abolitionism, Environmentalism, and the Limits of American Liberalism -- Notes -- Selected Bibliography -- Index.