Water resource management consists of planning, developing, distributing and managing the available water resources. With increasing population growth, urbanization, and climate change, water management becomes more demanding. This book presents innovative solutions for present as well as future challenges we are facing in water conservation and water quality protection. The 2nd Ed. entails new figures, percentages, latest information, trends, and all case studies updated with new ones. Provides a green perspective on how water is and can be used. The update will entail new figures, percentages, latest information, trends, and all case studies updated with new ones.