This book explores the common language of politics, ecology and risk, and crosses their conceptual divides. It seeks to shed light on the underlying structural factors, processes, players and interactions in the risk scenario, all of which influence decision-making that both increases and reduces disaster risk. The first section explores risk governance under conditions of increasing complexity, diversity and change. The discussion includes chapters on The problem of governance in the risk society; Making sense of decentralization; Understanding and conceptualizing risk in large-scale social-ecological systems; The disaster epidemic and Structure, process, and agency in the evaluation of risk governance. Part II, focused on governance in regions and domains of risk, includes nine chapters with discussion of Climate governance and climate change and society; Climate change and the politics of uncertainty; Risk complexity and governance in mountain environments; On the edge: Coastal governance and risk and Governance of megacity disaster risks, among other important topics. Part III discusses directions for further advancement in risk governance, with ten chapters on such topics as the transition From risk society to security society; Governing risk tolerability; Risk and adaptive planning for coastal cities; Profiling risk governance in natural hazards contexts; Confronting the risk of large disasters in nature and Transitions into and out of a crisis mode of socio-ecological systems. The book presents a comprehensive examination of the complexity of both risk and environmental policy-making and of their multipleand not always visibleinteractions in the context of socialecological systems. Just as important, it also addresses unseen and neglected complementarities between regulatory policy-making and ordinary individual decision-making through the actions of nongovernmental actors. A range of distinguished scholars from a diverse set ofdisciplines have contributed to the book with their expertise in many areas, including disaster studies, emergency planning and management, ecology, sustainability, environmental planning and management, climate change, geography, spatial planning, development studies, economy, political sciences, public administration, communication, as well as physics and geology.