Contributions from the Rosenberg International Forum on Water Policy – serie

The chapters in this volume are peer reviewed editions of the papers presented at the 7th meeting of the Rosenberg International Forum on Water Policy which was held in Buenos Aires, Argentina on November 15-17, 2010. The theme for Forum VII was Water for the Americas: Challenges and Opportunities. This Forum was unique in examining the water problems of the Americas and identifying water management experience gleaned in other parts of the world that might be useful in addressing the problems of the Americas. The sessions illustrated how the water problems of the Americas are common problems, differing only in degree from basin to basin. There was unanimity among the participants about the need for all inhabitants of the Americas to work together to ensure that everyone has access to adequate quantities of healthy water supplies and to appropriate sanitation services. This volume’s approach is to identify different responses and policies that address common issues and learn from contrasts and experiences. The value and potential that this approach affords is that it provides critical judgments about what has worked well and what needs to be done to gain a better future for the Americas’ water resources and society. Some issues covered in the volume are so pressing and urgent, chief among them is serving the unserved, that any delays putting out new facilities in many a rural areas of Central America may cost lives and reduce the outlook for children. Additionally, the volume makes clear that the outlook for the poorest and the future of hundreds of growing cities are threatened by climate change. This book looks into the future by analyzing present and relevant data and gains insight from the different developmental stages of the hemisphere.

There is not enough water globally for all the things humans need and want water to do for us. Water supply bubbles are bursting in China, the Middle East and India with potentially serious implications for the global economy and for political stability. Even the United States is depleting groundwater on average 25% faster than it is being replenished. Our thirst for water grows with our population, but the amount of fresh water available on Earth is fixed. If we assume "business as usual" by 2050 about 40% of the projected global population of 9.4 billion is expected to be facing water stress or scarcity. With increasing climate variability being predicted by global climate models, we are likely also to have more people without adequate water more of the time, even in water-rich regions. Irrigation productivity rose dramatically over the past 40 years as a result of the Green Revolution. However, even if we disregard the environmental impacts caused by that revolution, we are no nearer to achieving global food security than we were 40 years ago, as every time we come close to filling the food production gap population growth and ecosystem decline associated with water diversions to human purposes set us back. Our natural and agricultural ecosystems are trying to tell us something.This book pursues these overarching themes connecting to water and food production at global and regional scales. The collection offers a comprehensive discussion of all relevant issues, and offers a wide-ranging discussion with the aim of contributing to the global debate about water and food crises.

Global change possesses serious challenges for water managers and scientists. In mountain areas, where water supplies for half of the world population originate, climate and hydrologic models are still subject to considerable uncertainty. And yet, critical decisions have to be taken to ensure adequate and safe water supplies to billions of people, millions of farmers and industries, without further deteriorating rivers and water bodies. While global warming is known to cause glaciers’ retreat and reduced snow packs around the world, it is not clear that mountain discharge will be lower. What is widely recognised is that water management must be adapted to accommodate significant regime changes. However, this inevitably involves managing transboundary rivers, adding further complexity to putting principles in practice.This book takes global warming and the importance of mountain areas in world water resources as the starting point. First, it provides detailed reviews of the processes going on in several rivers systems and world regions in Europe (Rhône and Ebro), North America (Canadian Rockies, Western US and Mexico), the Middle East (Jordan), Africa (Tunisia, Kenya and South Africa). These contexts provide case studies and examples that show the difficulties and potential for adaptation to global change. Land-use, economics, numerous modeling approaches are some of the cross-cutting issues covered in the chapters. The volume also includes the views of water practitioners, with two chapters authored by members of the US-Canada International Joint Commission, an industrialist from Western Canada and an environmental leader in Spain. By combining a rich set of contexts and approaches, the volume succeeds in offering a view of the global challenges faced by water agencies, international donors and researchers around the world. A case is made in some chapters to seek adaptive strategies rather than trying to reduce or control resources variability. This requires factoring in land-use, social and economic aspects, especially in developing countries. Another conclusion is that complex problems can and must be posed and negotiated with the help of models, mapping techniques and science-based facts. However complex these may be, there are ways to translate them to easily interpretable and visualisations of alternative scenarios and courses of action. This book provides numerous examples of the potential of such approaches to draft environmental programmes solve transboundary disputes and reduce the economic consequences of droughts and climate instability.

Global change possesses serious challenges for water managers and scientists. In mountain areas, where water supplies for half of the world population originate, climate and hydrologic models are still subject to considerable uncertainty. And yet, critical decisions have to be taken to ensure adequate and safe water supplies to billions of people, millions of farmers and industries, without further deteriorating rivers and water bodies. While global warming is known to cause glaciers’ retreat and reduced snow packs around the world, it is not clear that mountain discharge will be lower. What is widely recognised is that water management must be adapted to accommodate significant regime changes. However, this inevitably involves managing transboundary rivers, adding further complexity to putting principles in practice.This book takes global warming and the importance of mountain areas in world water resources as the starting point. First, it provides detailed reviews of the processes going on in several rivers systems and world regions in Europe (Rhône and Ebro), North America (Canadian Rockies, Western US and Mexico), the Middle East (Jordan), Africa (Tunisia, Kenya and South Africa). These contexts provide case studies and examples that show the difficulties and potential for adaptation to global change. Land-use, economics, numerous modeling approaches are some of the cross-cutting issues covered in the chapters. The volume also includes the views of water practitioners, with two chapters authored by members of the US-Canada International Joint Commission, an industrialist from Western Canada and an environmental leader in Spain. By combining a rich set of contexts and approaches, the volume succeeds in offering a view of the global challenges faced by water agencies, international donors and researchers around the world. A case is made in some chapters to seek adaptive strategies rather than trying to reduce or control resources variability. This requires factoring in land-use, social and economic aspects, especially in developing countries. Another conclusion is that complex problems can and must be posed and negotiated with the help of models, mapping techniques and science-based facts. However complex these may be, there are ways to translate them to easily interpretable and visualisations of alternative scenarios and courses of action. This book provides numerous examples of the potential of such approaches to draft environmental programmes solve transboundary disputes and reduce the economic consequences of droughts and climate instability.

The chapters in this volume are peer reviewed editions of the papers presented at the 7th meeting of the Rosenberg International Forum on Water Policy which was held in Buenos Aires, Argentina on November 15-17, 2010. The theme for Forum VII was Water for the Americas: Challenges and Opportunities. This Forum was unique in examining the water problems of the Americas and identifying water management experience gleaned in other parts of the world that might be useful in addressing the problems of the Americas. The sessions illustrated how the water problems of the Americas are common problems, differing only in degree from basin to basin. There was unanimity among the participants about the need for all inhabitants of the Americas to work together to ensure that everyone has access to adequate quantities of healthy water supplies and to appropriate sanitation services. This volume’s approach is to identify different responses and policies that address common issues and learn from contrasts and experiences. The value and potential that this approach affords is that it provides critical judgments about what has worked well and what needs to be done to gain a better future for the Americas’ water resources and society. Some issues covered in the volume are so pressing and urgent, chief among them is serving the unserved, that any delays putting out new facilities in many a rural areas of Central America may cost lives and reduce the outlook for children. Additionally, the volume makes clear that the outlook for the poorest and the future of hundreds of growing cities are threatened by climate change. This book looks into the future by analyzing present and relevant data and gains insight from the different developmental stages of the hemisphere.