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Water Scarcity Variations Within a Country by Upali Ananda Amarasinghe,Lal Mutuwatta,R. Sakthivadivel Pdf
Sri Lanka is a country with vast spatial and seasonal variations of water supply and demand. Statistics in the form of aggregated information at national level sometimes mask issues of local water scarcity. But when the same indicators are used at subunit level, a substantial area of the country comes under severe water-scarce conditions. Knowledge of subunit level water scarcities is very important because most of the food requirement of the country at present comes from water-scarce regions and projected additional requirements are also to be met by the same regions.
Water Supply and Water Scarcity by Vasileios A. Tzanakakis,Nikolaos V. Paranychianakis,Andreas N. Angelakis Pdf
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.
Scarcity, Entitlements and the Economics of Water in Developing Countries by P. B. Anand Pdf
P.B. Anand argues that if water supply and sanitation were mainly problems of technology or financial resources, they would have been resolved long ago. While appreciating that technology and finances are important, he ascertains that there are many other factors affecting our ability to intervene and improve the effectiveness of policies. The author explores these factors, raising questions such as 'How is water scarcity defined?', 'Are there patterns that indicate how nations use available freshwater resources?', 'Does water shortage make nations use water more efficiently?', and 'What explains the variation in progress with regard to Millennium Development Goals related to water and sanitation?'. Other important themes examined include: - availability and use of water resources - inequality in access to water - the role of institutions and policies - access to water and sanitation - river water agreements and disputes - consumer perspectives and water utility management. Underpinned by international datasets and national- and local-level case studies based on primary research, the study identifies issues for policy and further research. As such, it will provide a fascinating and stimulating read for researchers, students and academics with an interest in water economics and public policy. Practitioners focusing on water management, sustainable development, water supply and health will also find this b
Coping with Water Scarcity by Jean-Marc Faurès Pdf
The report aims to provide a conceptual framework to address food security under conditions of water scarcity in agriculture. It has been prepared by a team of FAO staff and consultants in the framework of the project "Coping with water scarcity - the role of agriculture", and has been discussed at an Expert Consultation meeting organized in FAO, Rome, during the period 14-16 December 2009 on the same subject. It was subsequently edited and revised, taking account of discussions in the Expert Consultation and materials presented to the meeting. The purpose of the Expert Consultation was to assist FAO to better design its water scarcity programme. In particular, the experts were requested to provide recommendations on the range of technical and policy options and associated principles that FAO should promote as part of an agricultural response to water scarcity in member countries. The document offers views on the conceptual framework on which FAO's water scarcity programme should be based, proposes a set of definitions associated with the concept of water scarcity, and indicates the main principles on which FAO should base its action in support to its member countries. At the meeting, experts were requested to review the draft document and provide feedback and recommendations for its finalization. Issues that were addressed in discussions included: 3⁄4 Water scarcity: agreement on key definitions. 3⁄4 The conceptualisation of water scarcity in ways that are meaningful for policy development and decision-making. 3⁄4 The quantification of water scarcity. . 3⁄4 Policy and technical response options available to ensure food security in conditions of water scarcity. . 3⁄4 Criteria and principles that should be used to establish priorities for action in response to water scarcity in agriculture and ensure effective and efficient water scarcity coping strategies.
Coping with Water Scarcity by Luis Santos Pereira,Ian Cordery,Iacovos Iacovides Pdf
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.
Uncharted Waters by Richard Damania,Sébastien Desbureaux,Marie Hyland,Asif Islam,Aude-Sophie Rodella,Jason Russ,Esha Zaveri Pdf
The 21st century will witness the collision of two powerful forces - burgeoning population growth, together with a changing climate. With population growth, water scarcity will proliferate to new areas across the globe. And with climate change, rainfall will become more fickle, with longer and deeper periods of droughts and deluges. This report presents new evidence to advance understanding on how rainfall shocks coupled with water scarcity, impacts farms, firms, and families. On farms, the largest consumers of water in the world, impacts are channeled from declining yields to changing landscapes. In cities, water extremes especially when combined with unreliable infrastructure can stall firm production, sales, and revenue. At the center of this are families, who feel the impacts of this uncertainty on their incomes, jobs, and long-term health and welfare. Although a rainfall shock may be fleeting, its consequences can become permanent and shape the destiny of those who experience it. Pursuing business as usual will lead many countries down a 'parched path' where droughts shape destinies. Avoiding this misery in slow motion will call for fundamental changes to water policy around the globe. Building resilience to rainfall variability will require using different policy instruments to address the multifaceted nature of water. A key message of this report is that water has multiple economic attributes, each of which entail distinct policy responses. If water is not managed more prudently--from source, to tap, and back to source--the crises observed today will become the catastrophes of tomorrow.
World Water Demand and Supply, 1990 to 2025 by Anonim Pdf
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.
Spatial Variation in Water Supply and Demand Across River Basins of India by Upali Amarasinghe,Bharat R. Sharma,Noel Aloysius,Christopher Scott,Vladimir Smakhtin,Charlotte de Fraiture Pdf
India is a large country with regional differences in per-capita water supply and demand. Attempts to describe the water situation in India at a national level are often misleading due to the tremendous diversity in the water situation across the country. This Report analyzes the spatial variation of water supply and demand across river basins in India. The study identifies basins that are water-scarce because of inadequate water availability to meet the effective demand. It also identifies issues that are important for estimating the future water demand and for the formation of policy for future water-resources development and management.
Water Scarcity and the Role of Storage in Development by Andrew A. Keller,R. Sakthivadivel,David William Seckler Pdf
Of the four major ways of storing water –in the soil profile, in underground aquifers, in small reservoirs, and in large reservoirs behind dams–the first is possible only for relatively short periods of time. In this paper, the authors concentrate on the three kinds of long-term technologies, and compare the hydrological, operational, economic and environmental aspects of each.
National Research Council,Policy and Global Affairs,Science and Technology for Sustainability Program
Author : National Research Council,Policy and Global Affairs,Science and Technology for Sustainability Program Publisher : National Academies Press Page : 158 pages File Size : 49,6 Mb Release : 2007-03-20 Category : Science ISBN : 9780309179256
Agricultural Water Management by National Research Council,Policy and Global Affairs,Science and Technology for Sustainability Program Pdf
This report contains a collection of papers from a workshopâ€"Strengthening Science-Based Decision-Making for Sustainable Management of Scarce Water Resources for Agricultural Production, held in Tunisia. Participants, including scientists, decision makers, representatives of non-profit organizations, and a farmer, came from the United States and several countries in North Africa and the Middle East. The papers examined constraints to agricultural production as it relates to water scarcity; focusing on 1) the state of the science regarding water management for agricultural purposes in the Middle East and North Africa 2) how science can be applied to better manage existing water supplies to optimize the domestic production of food and fiber. The cross-cutting themes of the workshop were the elements or principles of science-based decision making, the role of the scientific community in ensuring that science is an integral part of the decision making process, and ways to improve communications between scientists and decision makers.
Is the Glass Half Empty Or Half Full? by Ms.Kalpana Kochhar,Ms.Catherine A Pattillo,Ms.Yan M Sun,Mrs.Nujin Suphaphiphat,Mr.Andrew J Swiston,Mr.Robert Tchaidze,Mr.Benedict J. Clements,Ms.Stefania Fabrizio,Valentina Flamini,Ms.Laure Redifer,Mr.Harald Finger Pdf
This paper examines water challenges, a growing global concern with adverse economic and social consequences, and discusses economic policy instruments. Water subsidies provided through public utilities are estimated at about $456 billion or 0.6 percent of global GDP in 2012. The paper suggests that getting economic incentives right, notably by reforming water pricing, can go a long way towards encouraging more efficient water use and supporting needed investment, while enabling policies that protect the poor. It also discusses pricing reform options and emphasizes an integrated and holistic approach to manage water, going beyond the water sector itself. The IMF can play a helpful role in ensuring that macroeconomic policies are conducive to sound water management.
National Research Council,Division of Behavioral and Social Sciences and Education,Committee on Population,Division on Earth and Life Studies,Water Science and Technology Board,Board on Atmospheric Studies and Climate,Committee on Himalayan Glaciers, Hydrology, Climate Change, and Implications for Water Security
Author : National Research Council,Division of Behavioral and Social Sciences and Education,Committee on Population,Division on Earth and Life Studies,Water Science and Technology Board,Board on Atmospheric Studies and Climate,Committee on Himalayan Glaciers, Hydrology, Climate Change, and Implications for Water Security Publisher : National Academies Press Page : 218 pages File Size : 49,8 Mb Release : 2012-11-29 Category : Science ISBN : 9780309261012
Himalayan Glaciers by National Research Council,Division of Behavioral and Social Sciences and Education,Committee on Population,Division on Earth and Life Studies,Water Science and Technology Board,Board on Atmospheric Studies and Climate,Committee on Himalayan Glaciers, Hydrology, Climate Change, and Implications for Water Security Pdf
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.
Academy of Sciences of the Islamic Republic of Iran,National Research Council,Policy and Global Affairs,Development, Security, and Cooperation,Office for Central Europe and Eurasia,Committee on US-Iranian Workshop on Water Conservation and Recycling
Author : Academy of Sciences of the Islamic Republic of Iran,National Research Council,Policy and Global Affairs,Development, Security, and Cooperation,Office for Central Europe and Eurasia,Committee on US-Iranian Workshop on Water Conservation and Recycling Publisher : National Academies Press Page : 292 pages File Size : 41,6 Mb Release : 2005-04-01 Category : Science ISBN : 9780309092937
Water Conservation, Reuse, and Recycling by Academy of Sciences of the Islamic Republic of Iran,National Research Council,Policy and Global Affairs,Development, Security, and Cooperation,Office for Central Europe and Eurasia,Committee on US-Iranian Workshop on Water Conservation and Recycling Pdf
In December 2002, a group of specialists on water resources from the United States and Iran met in Tunis, Tunisia, for an interacademy workshop on water resources management, conservation, and recycling. This was the fourth interacademy workshop on a variety of topics held in 2002, the first year of such workshops. Tunis was selected as the location for the workshop because the Tunisian experience in addressing water conservation issues was of interest to the participants from both the United States and Iran. This report includes the agenda for the workshop, all of the papers that were presented, and the list of site visits.
Latin America and the Caribbean by Brian W. Blouet,Olwyn M. Blouet Pdf
Updated and revised with many new detailed maps and photographs, Latin America and the Carribbean: A Systematic and Regional Survey, 7th Edition enables geographers to explore the changes and major issues facing this dynamic region today. The historical material has been streamlined in order to focus on contemporary issues. A new chapter was written to focus on Brazil and the Amazonia region. Key environmental issues are highlighted in new boxes throughout the chapters.
