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.

Scientific evidence shows that most glaciers in South Asia's Hindu Kush Himalayan region are retreating, but the consequences for the region's water supply are unclear, this report finds. The Hindu Kush Himalayan region is the location of several of Asia's great river systems, which provide water for drinking, irrigation, and other uses for about 1.5 billion people. Recent studies show that at lower elevations, glacial retreat is unlikely to cause significant changes in water availability over the next several decades, but other factors, including groundwater depletion and increasing human water use, could have a greater impact. Higher elevation areas could experience altered water flow in some river basins if current rates of glacial retreat continue, but shifts in the location, intensity, and variability of rain and snow due to climate change will likely have a greater impact on regional water supplies. Himalayan Glaciers: Climate Change, Water Resources, and Water Security makes recommendations and sets guidelines for the future of climate change and water security in the Himalayan Region. This report emphasizes that social changes, such as changing patterns of water use and water management decisions, are likely to have at least as much of an impact on water demand as environmental factors do on water supply. Water scarcity will likely affect the rural and urban poor most severely, as these groups have the least capacity to move to new locations as needed. It is predicted that the region will become increasingly urbanized as cities expand to absorb migrants in search of economic opportunities. As living standards and populations rise, water use will likely increase-for example, as more people have diets rich in meat, more water will be needed for agricultural use. The effects of future climate change could further exacerbate water stress. Himalayan Glaciers: Climate Change, Water Resources, and Water Security explains that changes in the availability of water resources could play an increasing role in political tensions, especially if existing water management institutions do not better account for the social, economic, and ecological complexities of the region. To effectively respond to the effects of climate change, water management systems will need to take into account the social, economic, and ecological complexities of the region. This means it will be important to expand research and monitoring programs to gather more detailed, consistent, and accurate data on demographics, water supply, demand, and scarcity.

One of the main problems confronting the world of the 21st Century is a shortage of water. There is already severe scarcity in many regions of the world, causing tremendous problems for local populations and indeed entire societies. There is insufficient water available for the production of food to alleviate poverty and starvation; the lack of water hampers industrial, urban and tourism development, forcing restrictions on other sectors, especially agriculture; health problems arise as the deterioration of ground and surface waters favours water-borne diseases, which flourish in the absence of decent water distribution and sewerage systems. Water conflicts still arise in areas under stress, while water for nature has become a vanishing priority in such zones. This book is a guide to the establishment of regional and/or local guidelines for developing and implementing new ideas for coping with water scarcity. The basic premise underlying the book is that water scarcity will persist, so personal, human and society-wide skills will be needed to cope with it while living in harmony with the necessary environmental constraints. The book provides basic information to assist decision makers, water managers, engineers, agronomists, social scientists and other professions (and their students) in formulating coherent, hopefully harmonious and consolidated views on the issue. Guidelines are also given for introducing the general public to the concept of water scarcity and how to deal with it.

A radical new approach to tackling the growing threat of water scarcity Water is essential to life, yet humankind’s relationship with water is complex. For millennia, we have perceived it as abundant and easily accessible. But water shortages are fast becoming a persistent reality for all nations, rich and poor. With demand outstripping supply, a global water crisis is imminent. In this trenchant critique of current water policies and practices, Edward Barbier argues that our water crisis is as much a failure of water management as it is a result of scarcity. Outdated governance structures and institutions, combined with continual underpricing, have perpetuated the overuse and undervaluation of water and disincentivized much-needed technological innovation. As a result “water grabbing” is on the rise, and cooperation to resolve these disputes is increasingly fraught. Barbier draws on evidence from countries across the globe to show the scale of the problem, and outlines the policy and management solutions needed to avert this crisis.

From cities to biofuels, competition for water is accelerating. Climate change threatens to intensify the onset and severity of the water crisis in several regions of the developing world: this is already happening throughout much of Asia, the Mediterranean, southwestern Australia, and the southwestern US. Along with water shortages, unsafe water becomes an increasingly widespread problem, too. As water crises trigger food and health crises, billions may slip further into poverty, leading to greater social and political unrest, new wars, and worsening national security. Out of Water doesn't just illuminate the coming global water crisis: it presents innovative solutions in agriculture, engineering, governance, and beyond, including state-of-the art techniques for integrated water management. This book will help raise the level of debate about water to the highest levels of government, and identify workable reforms and incentives to help water users utilize this crucial resource far more efficiently.

The threat of water scarcity touches human populations and ecosystems worldwide. This work overviews the various legal responses to conflicts involving water as a resource. It addresses the continuous development of water law in the face of new water shortage scares. The distinguished team of contributors analyses the nature of the problem, international water law, legal and policy responses to water scarcity in selected regions, and the emergence of a new body of economic water law. Contributing experts in the field of water law and policy reveal the diverse and dynamic development of water law and the interaction between the legal and policy responses at the international, regional, and national levels. A result of the conference `Scarcity of Water, International, European and National Legal Aspects' held at the Faculty of Law of the Erasmus University, Rotterdam in October 1995, this book also contains a selection of papers presented at the conference.

In some parts of the United States, water is disappearing as consumption exceeds supply. In other parts, battles are raging that will determine both the cost and the quality of a simple glass of water. Not a Drop to Drink comprehensively examines the imminent crisis of America's water supply and explains what readers everywhere can do about it. In this straightforward, story-driven book, Ken Midkiff talks to crusty ranchers in Topeka, suited lawyers in Atlanta, and smooth-talking politicians in Los Angeles and Washington, D.C. Using regional and national case studies, he analyzes and presents the roots of the problem, and then says what we must do to solve it. Written by one of the foremost experts on America's water supply, Not a Drop to Drink is a must-read book for concerned citizens nationwide.