This volume provides a challenging explanation of the forces that have shaped the international global warming debate. It takes a novel approach to the subject by concentrating on the ways non-state actors--such as scientific, environmental and industry groups, as opposed to governmental organizations--affect political outcomes in global fora on climate change. It also provides insights into the role of the media in influencing the agenda. The book draws on a range of analytical approaches to assess and explain the influence of these nongovernmental organizations on the course of global climate politics. The book will be of interest to all researchers and policy makers associated with climate change, and will be used in university courses in international relations, politics, and environmental studies.