ABSTRACT
As the world’s population continues to grow, it is evident that we must think very carefully in terms of development that meets the needs of the present without compromising the ability of future generations to meet their own needs and aspirations, i.e., truly sustainable development. It is clear, however, that some quite unsustainable development policies and practices, particularly concerning water management, have been followed. Economic and social change necessitate develop ment of water resources based on sound environmental principles. A sound scientic understanding should form the foundation upon which rational decisions regarding water resources management should be made.
