Drought is an insidious hazard of nature. It originates from a deficiency of precipitation that results in a water shortage for some activity or some group. Africa has suffered the most dramatic impacts from drought during the past several decades the recent droughts in the southern and eastern portions of the continent are testimony to that fact. However, the vulnerability of all nations to extended periods of water shortage has been underscored again and again during this same time period. In the past decade alone, droughts have occurred with considerable frequency and severity in most of the developed and developing world. Significant parts of North and South America, Australia, Europe, and Asia have been plagued recently by extended periods of severe drought, often resulting in far-reaching economic, social, and environmental consequences. In the western United States, for example, vast areas are facing the prospects of a sixth or seventh consecutive year of drought in 1993. Concern by members ofthe scientific and policy communities about the inability of governments to respond in an effective and timely manner to drought and its associated impacts exists worldwide. Numerous "calls for action" for improved drought planning and management have been issued by national governments, professional organizations, intergovernmental organizations, nongovernmental organizations, and others. The United Nations' International Decade for Natural Disaster Reduction (lDNDR) is yet another example of an international call for action to reduce the impacts that result from drought and other natural hazards.

This book focuses on mega-droughts of the past 20 years. Twelve cases from both developed and developing countries are elaborated in the book. Its intention is to draw lessons from the cases of extremely severe water shortages so that countries and stakeholders can be better prepared for extreme drought events in the future. Several recurrent themes emerge from the diverse case studies and descriptions of programs. For example, most chapters discuss the necessity to move from reactive (compensatory) to preventive policies. This theme has implications for use of insurance in developing countries, e.g. is insurance encouraging investments to help countries avoid disasters or is it acting mostly in a humanitarian way to compensate for losses to help people? Several authors point to the importance of risk assessment and to developing risk based policies for drought. This raises statistical issues of how such assessments of uncertainty and risks are done and how they relate to actual occurrence of events. Most chapters call for more inter-sectoral policies, policies which integrate water resources management approaches and to the necessity of raising public awareness of droughts in times of no drought. The issue of structural versus nonstructural is clear in most cases. While often cast as ‘either/or’ the message that emerges is more one of how do you integrate these approaches. Finally, a few chapters bring to light how prevention is needed for national security as well as water security. In Focus – a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.

During the past decade many countries in the world have experienced droughts, with severe impacts on water urban supply systems. Because droughts are natural phenomena, water utilities must design and implement drought management plans. This topic was selected for the International Course on Drought Management Planning in Water Supply Systems, which took place in Valencia, Spain, on 9-12 December 1997, and was hosted by the Universidad Internacional Menéndez y Pelayo (UIMP). The contributions in this book have been carefully selected and presented in four sections: Introduction Water Supply Systems Modernization Drought Management in an Urban Context Practical Cases (Israel, USA, Italy, Spain) To achieve a well-balanced approach, authors were invited from academia as well as from consultancies and water utilities, and have wide experience in the subject. The book is mainly aimed at water supply engineers, working in utilities and consultancies.

An academically focused collection of papers highlighting the successes and challenges of a move from disaster to risk management in responding to drought. The book passes on the experiences gained from Australia’s trail-blazing new policy, introduced in 1992.

Drought draws together contributions from over 75 leading international researchers in the field to present the most comprehensive body of research on the physical and social dimensions of drought to date. Including an extensive range of case-studies covering the most drought-prone and most affected countries, the contributors examine new technology, planning methodologies and mitigation actions from recent drought experiences worldwide. Following a discussion of the critical concepts of drought, the work is divided into the following additional parts: · causes and predictability · monitoring and early warning techniques · impacts and assessment methodologies · links between drought and other global issues · conclusions and future challenges

Most of the world's freshwater resources in the liquid state (i.e. not in glaciers and polar caps) are underground. As the population grows and demand for water rises, reliance on groundwater increases. In many cases the groundwater underlies boundaries, or is part of a hydraulic system that crosses boundaries. In such cases there is always the danger that the 'prisoner's dilemma' will run its course and all parties will compete over who will pump the most water, ultimately destroying the storage potential to the detriment of future generations of all parties reliant on the groundwater. This book explores the options and means for averting this all too realistic scenario by managing these shared groundwater resources. Nowhere is the likelihood of excessive use of groundwater greater than in the water-scarce Middle East, and especially in the Israeli-Palestinian case. Here both sides are heavily reliant on a shared aquifer, the Mountain aquifer. This book is the outcome of a seven-year effort to find ways to manage the Mountain aquifer, perhaps the most important resource shared by Israelis and Palestinians. As part of this cooperative study, four workshops were held in which a selected number of Palestinian, Israeli, and foreign experts were invited. The chapters in this book were originally presented in one of these workshops. To these papers introductory and concluding chapters were added.