Environmental hazards do not respect international boundaries. In this volume, distinguished international researchers make a significant contribution to the understanding and management of transboundary environmental risks.The transboundary risk topics addressed highlight the key political, economic, social and cultural issues of our times, such as how transboundary risks are constructed, how they are communicated within and between countries, how the authorities can build trust in political management processes, and what forms of democratic risk management institutions are appropriate.Useful practical lessons on the management of transboundary risk at the national and international levels are drawn from the case studies. The volume provides valuable evidence and analysis for those working on international environmental issues and all aspects of risk management.