The objective of this series is to explore the policy implications arising from our existing scientific knowledge of global problems in environmental management. The books in the series will critically examine the science, and then in the context of political and socio-economic realities, explore how this information can best be used for rational policies of environmental management.

• Editorial Boards: R. Eden, Director of the Cambridge Energy Research Group, Cavendish Labratory, Cambridge, UK, M. W. Holdgate, Director General, International Union for Conservation of Nature and Natural Resources, Gland, Switzerland, D. J. Kuenen, University of Leiden, Holland, T. F. Malone, Saint Joseph College, Connecticut, N. Polunin, Chairman, The Foundation for Environmental Conservation, Geneva, Switzerland; President of the World Council for the Biosphere, G. M. Woodwell, Director, Woods Hole Research Center, Massachusetts