Water Supply and Water Scarcity

This Book includes selected papers that has been published in the Water journal Special Issue (SI) on Water Supply and Water Scarcity. Moreover an overview of the SI is included. The papers selected for publication in the SI include review and research papers on water history on water management issues under water scarcity regimes on rainwater harvesting on water quality and degradation and on climatic variability impacts on water resources. Overall the issue identify and highlight the main challenges in water sector and particularly in management and protection of water resources and in use of alternative (non-conventional) water resources especially in areas with demographic change and climate vulnerability in order to achieve sustainable and secure water supply. Furthermore general guidelines and possible solutions for an improved and sophisticated water management system are proposed and discussed such as the adoption of advanced technological solutions and practices that improve water-use efficiency and the use of alternative water resources to address the growing environmental and health issues and to reduce the emerging conflicts among water users.