More than two decades of international negotiations have failed to stem emissions of greenhouse gases that are causing global warming and climate change. This book identifies a way to escape this ongoing tragedy of the atmospheric commons. It takes a fresh approach to the ethics and practice of international environmental justice and proposes fundamental adjustments to the climate change regime, in the process drawing support from cosmopolitan ethics and global conceptions of justice. The author argues for 'cosmopolitan diplomacy', which sees people, rather than states alone, as the causes of climate change and the bearers of related rights, duties and obligations. Key Features *Describes the role of ethics and justice in world affairs and demonstrates that climate change is a matter of extreme injustice *Summarizes and critiques the flawed doctrine of international interstate justice upon which governments have premised climate change agreements and policies *Examines the practical and ethical significance for climate change of growing numbers of new consumers in the developing world *Proposes a cosmopolitan approach to climate change that is more principled, more practical and more politically viable than current international policies *For lecturers and students, a companion World Ethics and Climate Change learning guide is freely downloadable from www.euppublishing.com All of the author's royalties are directly paid to OXFAM in support of the world's poor, who are most harmed by - and least responsible for - climate change.