World water resources at the beginning of the twenty-first century

Introduction 1. The Earth and its Physical Features Water Resources Assessment 3. Methods for Assessing and Forecasting Global Water Use and Water Availability 4. Water Resources, Water Use, and Water Availability in Europe 5. Water Resources, Water Use, and Water Availability in Asia 6. Water Resources, Water Use, and Water Availability in Africa 7. Water Resources, Water Use, and Water Availability in North America 8. Water Resources, Water Use, and Water Availability in South America 9. Water Resources, Water Use, and Water Availability in Australia and Oceania 10. Global Renewable Water Resources in Space and Time 11. World Water Use and Water Availability 12. Climate Change and Water Resources General Conclusions.