17,682 research outputs found

    Interbasin Water Transfers and Water Scarcity in a Changing World: A Solution or a Pipedream?

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    The world is increasingly forced to face the challenge of how to ensure access to adequate water resources for expanding populations and economies, whilst maintaining healthy freshwater ecosystems and the vital services they provide. Now the growing impacts of climate change are exacerbating the problem of water scarcity in key regions of the world. One popular way for governments to distribute water more evenly across the landscape is to transfer it from areas with perceived surpluses, to those with shortages.While there is a long history of water transfers from ancient times, as many societies reach the limits of locally renewable water supplies increasingly large quantities of water are being moved over long distances, from one river basin to another. Since the beginning of dam building that marked the last half of the 1900s more that 364 large-scale interbasin water transfer schemes (IBTs) have been established that transfer around 400 km³ of water per year (Shiklomanov 1999). IBTs are now widely touted as the quick fix solution to meeting escalating water demands. One estimate suggests that the total number of largescale water transfer schemes may rise to between 760 and 1 240 by 2020 to transfer up to 800 km³ of water per year (Shiklomanov 1999).The wide range of IBT projects in place, or proposed, has provoked the preparation of this review, including seven case studies from around the globe. It builds on previous assessments and examines the costs and benefits of large scale IBTs. This report assesses related, emerging issues in sustaining water resources and ecosystems, namely the virtual water trade, expanding use of desalination, and climate change adaptation. It is based on WWF's 2007 publication "Pipedreams? Interbasin water transfers and water shortages".The report concludes that while IBTs can potentially solve water supply issues in regions of water shortage - they come with significant costs. Large scale IBTs are typically very high cost, and thus economically risky, and they usually also come with significant social and environmental costs; usually for both the river basin providing and the river basin receiving the water

    No. 21: The State of Poverty and Food Insecurity in Maseru, Lesotho

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    This report on food insecurity in urban Lesotho is the latest in a series on Southern African cities issued by AFSUN. Like the previous reports, it focuses on one city (Maseru) and on poor neighbourhoods and households in that city. More than 60% of poor households surveyed in Maseru were severely food insecure. While food price increases worsen food insecurity for poor households, it is poverty that weakens the resilience of society to absorb these increases. This report argues that Maseru residents face specific and interrelated challenges with respect to food and nutrition insecurity. These are poverty; limited local livelihood opportunities; and dependence on food imports. Among AFSUN’s recommendations are improved infrastructure as a fundamental precondition for meaningful development; the creation of livelihood opportunities within the food system; social safety nets designed in ways that promote economic growth and equity; and free movement of labour between Lesotho and South Africa, which would dramatically improve the incomes of many poor households. The Government of Lesotho and the Maseru Municipality and District can direct both aid and investment into an integrated food security strategy that prioritizes urban infrastructure, livelihoods, welfare and mobility. This takes political will, but the development and implementation of such a food security strategy is well within the reach of the country’s leaders

    The State of Poverty and Food Insecurity in Maseru, Lesotho

    Get PDF
    This report on food insecurity in urban Lesotho is the latest in a series on Southern African cities issued by AFSUN. Like the previous reports, it focuses on one city (Maseru) and on poor neighbourhoods and households in that city. More than 60% of poor households surveyed in Maseru were severely food insecure. While food price increases worsen food insecurity for poor households, it is poverty that weakens the resilience of society to absorb these increases. This report argues that Maseru residents face specific and interrelated challenges with respect to food and nutrition insecurity. These are poverty; limited local livelihood opportunities; and dependence on food imports. Among AFSUN’s recommendations are improved infrastructure as a fundamental precondition for meaningful development; the creation of livelihood opportunities within the food system; social safety nets designed in ways that promote economic growth and equity; and free movement of labour between Lesotho and South Africa, which would dramatically improve the incomes of many poor households. The Government of Lesotho and the Maseru Municipality and District can direct both aid and investment into an integrated food security strategy that prioritizes urban infrastructure, livelihoods, welfare and mobility. This takes political will, but the development and implementation of such a food security strategy is well within the reach of the country’s leaders

    International Experiences of Water Transfers: Relevance to India

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    Water transfer has and continues to be a complementary water management strategy for promoting socioeconomic development in water-scarce regions. Over 2,500 years ago, the Babylonians, the Roman Empire and the Chinese constructed extensive canal networks, famous aqueducts and the Grand Canal, respectively to support human settlement in water- scarce areas. The Anuradhapura Kingdom of Sri Lanka too, developed major water transfers as far back as 100 AD to support the irrigation civilization needed to feed a growing population (de Silva 2005). In the twentieth century, the phenomenal population growth, economic activities and human settlement in water-scarce regions, advances in science and technology, political will and availability of resources led to the development of many water transfer projects. The global inter-basin water transfer increased from 22 to 56, from 56 to 257 and from 257 to 364 km3 yr-1 during the periods 1900-1940, 1940-1980 and 1980-1986, respectively, and is estimated to increase to 760-1,240 km3 yr-1 by 2020 (Shiklomanov 1999). Most of these transfers took place in Canada, the former USSR, India and the United States of America

    Climate and southern Africa's water-energy-food nexus

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    In southern Africa, the connections between climate and the water-energy-food nexus are strong. Physical and socioeconomic exposure to climate is high in many areas and in crucial economic sectors. Spatial interdependence is also high, driven for example, by the regional extent of many climate anomalies and river basins and aquifers that span national boundaries. There is now strong evidence of the effects of individual climate anomalies, but associations between national rainfall and Gross Domestic Product and crop production remain relatively weak. The majority of climate models project decreases in annual precipitation for southern Africa, typically by as much as 20% by the 2080s. Impact models suggest these changes would propagate into reduced water availability and crop yields. Recognition of spatial and sectoral interdependencies should inform policies, institutions and investments for enhancing water, energy and food security. Three key political and economic instruments could be strengthened for this purpose; the Southern African Development Community, the Southern African Power Pool, and trade of agricultural products amounting to significant transfers of embedded water

    International experiences of water transfers: relevance to India

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    River basinsWater scarcityWater transferPlanningCase studiesHistoryWater allocationEnvironmental effectsFood securityPoverty

    No. 01: The Invisible Crisis: Urban Food Security in Southern Africa

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    Over 1 billion people in the world are now undernourished. The current international food security agenda focuses almost exclusively on the food insecurity of rural populations and ways to increase smallholder production. The plight of the urban poor is marginalised in this agenda leading to neglect of the ‘invisible crisis’ of urban food insecurity. This paper argues that the future of Southern Africa is an urban one and that urban food insecurity is therefore a large and growing challenge. The causes, determinants and solutions for food insecurity are not the same in rural and urban settings. This paper suggests that urban food insecurity needs to be urgently inscribed on the food security agenda of local and national governments, regional organisations and international organisations
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