Drawing on a wide range of case studies, the papers in this volume explore a variety of questions concerning international boundaries and environmental security. Detailed studies by geographers, lawyers and political scientists are complemented by contributions from practitioners and technical experts to produce a unique survey both of the problems which arise when environmental systems cross international borders and of the transboundary co-operative projects designed to reduce the threat of ecological catastrophe and political conflict between competing neighbours around the world. This book should be of interest to those seeking an understanding of the complex relationship between boundaries, environment and international security.;This collection is based on the proceedings of an international conference held in Singapore in June 1995.