This study is based on the findings of the Global Integrity Project, and brings together scientists and thinkers from around the world to examine the combined problems of threatened and unequal human wellbeing, degradation of the ecosphere and unsustainable economies. The book: examines the history, philosophy, economics and ethics of the concept and practice of ecological integrity; explores how integrity can be measured; and offers recommendations for reversing ecological degradation while promoting social and economic justice and welfare. The contributors argue that there is an urgent need for rapid and fundamental change in the ecologically destructive patterns of collective human behaviour if society is to survive and thrive in coming decades.