Book excerpt: Climate change governance is in a state of enormous flux. New and more dynamic forms of governing are appearing around the international climate regime centred on the United Nations Framework Convention on Climate Change (UNFCCC). They appear to be emerging spontaneously from the bottom up, producing a more dispersed pattern of governing, which Nobel Laureate Elinor Ostrom famously described as 'polycentric'. This book brings together contributions from some of the world's foremost experts to provide the first systematic test of the ability of polycentric thinking to explain and enhance societal attempts to govern climate change. It is ideal for researchers in public policy, international relations, environmental science, environmental management, politics, law and public administration. It will also be useful on advanced courses in climate policy and governance, and for practitioners seeking incisive summaries of developments in particular sub-areas and sectors. This title is also available as Open Access on Cambridge Core.