This book was conceived out of a deep concern about the impact of pending global water shortages. Increased demand for water by a rapidly growing world population, decreased water availability due to climate change and the ever-worsening condition of water supply infrastructure are great concerns. In the absence of decisive action water shortage will be the norm in both developed and developing nations. The author, during a life-long career in water resources engineering, witnessed the hardships resulting from inadequate water supply throughout the world. Those experiences motivated him to present the solution to this global challenge in a manner understandable to the general public and professionals alike. Dedicated to developing the essential insight necessary to address the challenge, this book presents a thorough analysis of the nature and magnitude of the problem, and its solution. The author provides practical guidance on how to end the current practice of relentlessly and irreversibly depleting our water resources, and he reveals how to reliably and sustainably supply water in the future, in spite of the anticipated impacts of climate change. The book is essential reading for anyone interested in and concerned about the impacts of climate change on future water supplies. The concrete approach to reliably and sustainably supply fresh water to both current and future generations provides clear direction on how to proceed.