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Author: Upali A. Amarasinghe
Publisher: IWMI
ISBN: 9290907932
Category :
Languages : en
Pages : 36
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Book Description
A review of global water demand projections (WDPs) show substantial over- or under-estimation. The pre-1990 WDPs, with population as the main driver of change, over-projected current water use by 20 to 130%. The post-1990 WDPs, with sophisticated modeling frameworks, show substantial underestimation under the ‘business-as-usual’ scenarios and are more downward biased under sustainable scenarios. Overall, the value of long-term country-level projections in global WDPs is inadequate for local water resource planning. To increase the accuracy and value of global WDPs, future WDPs should take into account the spatial variation and influence of rapidly changing key exogenous and endogenous drivers of water demand in different sectors across and within countries, and provide a sensitivity analysis of projections.
Author: Upali A. Amarasinghe
Publisher: IWMI
ISBN: 9290907932
Category :
Languages : en
Pages : 36
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Book Description
A review of global water demand projections (WDPs) show substantial over- or under-estimation. The pre-1990 WDPs, with population as the main driver of change, over-projected current water use by 20 to 130%. The post-1990 WDPs, with sophisticated modeling frameworks, show substantial underestimation under the ‘business-as-usual’ scenarios and are more downward biased under sustainable scenarios. Overall, the value of long-term country-level projections in global WDPs is inadequate for local water resource planning. To increase the accuracy and value of global WDPs, future WDPs should take into account the spatial variation and influence of rapidly changing key exogenous and endogenous drivers of water demand in different sectors across and within countries, and provide a sensitivity analysis of projections.
Author:
Publisher: IWMI
ISBN: 9290903546
Category : Irrigation
Languages : en
Pages : 50
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Book Description
Presents two alternative scenarios of water demand and supply for 118 countries over the 1990 to 2025 period and develops indicators of water scarcity for each country and for the world as a whole. This study is the first step in IWMI’s long-term research goal: to determine the extent and depth of water scarcity, its consequences for individual countries and what can be done about it.
Author: Vasileios A. Tzanakakis
Publisher: MDPI
ISBN: 3039433067
Category : Science
Languages : en
Pages : 290
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Book Description
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.
Author: U.S. National Academy of Sciences
Publisher: National Academies Press
ISBN: 030906421X
Category : Political Science
Languages : en
Pages : 243
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Book Description
This book is the result of a joint research effort led by the U.S. National Academy of Sciences and involving the Royal Scientific Society of Jordan, the Israel Academy of Sciences and Humanities, and the Palestine Health Council. It discusses opportunities for enhancement of water supplies and avoidance of overexploitation of water resources in the Middle East. Based on the concept that ecosystem goods and services are essential to maintaining water quality and quantity, the book emphasizes conservation, improved use of current technologies, and water management approaches that are compatible with environmental quality.
Author: V. Gardiner
Publisher: CRC Press
ISBN: 1482275600
Category : Architecture
Languages : en
Pages : 148
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Book Description
This book is an outcome of the workshop on water demand forecasting in 1985. It summarises the 'state-of-the-art' in water demand forecasting, and identifies some of its links with environmental issues. The book discusses some of the issues raised in more detail and provides case studies.
Author: Mark W. Rosegrant
Publisher: Intl Food Policy Res Inst
ISBN: 0896296466
Category : Business & Economics
Languages : en
Pages : 36
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Book Description
A thirsty world; Alternative futures for water; Consequences of key policy changes; Implications for the future.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309145880
Category : Science
Languages : en
Pages : 526
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Book Description
Climate change is occurring, is caused largely by human activities, and poses significant risks for-and in many cases is already affecting-a broad range of human and natural systems. The compelling case for these conclusions is provided in Advancing the Science of Climate Change, part of a congressionally requested suite of studies known as America's Climate Choices. While noting that there is always more to learn and that the scientific process is never closed, the book shows that hypotheses about climate change are supported by multiple lines of evidence and have stood firm in the face of serious debate and careful evaluation of alternative explanations. As decision makers respond to these risks, the nation's scientific enterprise can contribute through research that improves understanding of the causes and consequences of climate change and also is useful to decision makers at the local, regional, national, and international levels. The book identifies decisions being made in 12 sectors, ranging from agriculture to transportation, to identify decisions being made in response to climate change. Advancing the Science of Climate Change calls for a single federal entity or program to coordinate a national, multidisciplinary research effort aimed at improving both understanding and responses to climate change. Seven cross-cutting research themes are identified to support this scientific enterprise. In addition, leaders of federal climate research should redouble efforts to deploy a comprehensive climate observing system, improve climate models and other analytical tools, invest in human capital, and improve linkages between research and decisions by forming partnerships with action-oriented programs.
Author: Gulbenkian Think Tank on Water and the Future of Humanity
Publisher: Springer Science & Business Media
ISBN: 3319014579
Category : Science
Languages : en
Pages : 260
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Book Description
This unique, engaging, and highly authoritative volume enlightens readers on changes needed in the way society accesses, provides, and uses water. It further shines a light on changes needed in the way we use food, energy, and other goods and services in relation to water, and offers projections and recommendations, up to 2050, that apply to water access challenges facing the poor and the common misuse of water in industry, agriculture, and municipalities. Written by an unparalleled slate of experts convened by the Calouste Gulbenkian Foundation, the book takes on one of the most critical issues on the planet today. In a frank yet optimistic assessment of major developmental challenges, but also opportunities, facing future generations, the author elucidates linkages between water and a range of other drivers from various disciplinary and stakeholder perspectives. Ultimately portraying the belief that Humanity can harness its visionary abilities, technologies, and economic resources for increased wellbeing and sound stewardship of resources, the book presents an optimistic statement stressing actions scientists, policy makers, and consumers can and must take to meet the water management challenges of a warming planet anticipating nine billion inhabitants by 2050. Gulbenkian Think Tank on Water and the Future of Humanity: Benedito Braga, Pres. World Water Council & Prof. of Civil Engineering, Univ. of São Paulo, Brazil; Colin Chatres, Director General of the International Water Management Institute, Sri Lanka; William J. Cosgrove, Pres. of Ecoconsult Inc. & Senior Adviser for the UN World Water Development Report, Canada; Luis Veiga da Cunha, Prof. Environmental Science and Engineering, Universidade Nova de Lisboa, Portugal; Peter Gleick, Pres. of the Pacific Institute, USA; Pavel Kabat, Director, International Institute for Applied Systems Analysis, Austria; and Prof. & Chair, Earth Systems Science, Wageningen University, The Netherlands; Mohamed Ait Kadi, President of the General Council of Agricultural Development, Morocco; Daniel P. Loucks, Prof. of Civil Engineering, Cornell Univ. USA; Jan Lundqvist, Senior Scientific Advisor, Stockholm International Water Institute, Sweden; Sunita Narain, Director, Center for Science & Environment, New Delhi, India; Jun Xia, Pres., International Water Resources Association, Chair Prof. & Dean, The Research Institute for Water Security (RIWS), Wuhan University, China.
Author: Asit K. Biswas
Publisher: Springer
ISBN: 9811066957
Category : Science
Languages : en
Pages : 251
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Book Description
This book highlights what are likely to be the future megatrends in the water sector and why and how they should be incorporated to improve water governance in the coming decades. In this first ever book on megatrends for the water sector, 22 leading world experts from different disciplines representing academia, business, government, national and international organisations discuss what the major megatrends of the future are and how they will radically change water governance in the coming decades.
Author: WWAP
Publisher: UNESCO Publishing
ISBN: 9231002643
Category : Water quality management
Languages : en
Pages : 154
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Book Description
