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The Africa Infrastructure Country Diagnostic (AICD) has produced continent-wide analysis of many aspects of Africa's infrastructure challenge. The main findings were synthesized in a flagship report titled Africa's Infrastructure: a time for transformation, published in November 2009. Meant for policy makers, that report necessarily focused on the high-level conclusions. It attracted widespread media coverage feeding directly into discussions at the 2009 African Union Commission Heads of State Summit on Infrastructure. Although the flagship report served a valuable role in highlighting the main findings of the project, it could not do full justice to the richness of the data collected and technical analysis undertaken. There was clearly a need to make this more detailed material available to a wider audience of infrastructure practitioners. Hence the idea of producing four technical monographs, such as this one, to provide detailed results on each of the major infrastructure sectors, information and communication technologies (ICT), power, transport, and water, as companions to the flagship report. These technical volumes are intended as reference books on each of the infrastructure sectors. They cover all aspects of the AICD project relevant to each sector, including sector performance, gaps in financing and efficiency, and estimates of the need for additional spending on investment, operations, and maintenance. Each volume also comes with a detailed data appendix, providing easy access to all the relevant infrastructure indicators at the country level, which is a resource in and of itself.

Source Separation and Decentralization for Wastewater Management sets up a comprehensive view of the resources involved in urban water management. It explores the potential of source separation and decentralization to provide viable alternatives to sewer-based urban water management. The book presents a comprehensive view of the state of the art of source separation and ecentralization. It discusses the technical possibilities and practical experience with source separation in different countries around the world. The area is in rapid development, but many of the fundamental insights presented in this book will stay valid.

Global food consumption drives irrigation for crops, which depletes aquifers in some regions; here we quantify the volumes of groundwater depletion associated with global food production and international trade. International food trade causes water depletion (Dalin 21403, Phys Letter) International trade is increasingly transporting 'hidden' resources and environmental factors from one country to another. For example, the water used to produce a spear of asparagus eaten in London might come from irrigation in South America. Similarly, pollution generated in China might be traceable to consumer demand in the United States. Carole Dalin et al . now extend this idea to the non-renewable groundwater that is consumed for agricultural trade. They find that 11 per cent of groundwater extraction is linked to agricultural trade, with Pakistan, the United States and India accounting for two-thirds of the global totals. The research reveals the degree to which food consumption in one country can lead to groundwater depletion in others, highlighting the need to better consider issues of sustainability and equity in the international food trade. Recent hydrological modelling 1 and Earth observations 2 , 3 have located and quantified alarming rates of groundwater depletion worldwide. This depletion is primarily due to water withdrawals for irrigation 1 , 2 , 4 , but its connection with the main driver of irrigation, global food consumption, has not yet been explored. Here we show that approximately eleven per cent of non-renewable groundwater use for irrigation is embedded in international food trade, of which two-thirds are exported by Pakistan, the USA and India alone. Our quantification of groundwater depletion embedded in the world’s food trade is based on a combination of global, crop-specific estimates of non-renewable groundwater abstraction and international food trade data. A vast majority of the world’s population lives in countries sourcing nearly all their staple crop imports from partners who deplete groundwater to produce these crops, highlighting risks for global food and water security. Some countries, such as the USA, Mexico, Iran and China, are particularly exposed to these risks because they both produce and import food irrigated from rapidly depleting aquifers. Our results could help to improve the sustainability of global food production and groundwater resource management by identifying priority regions and agricultural products at risk as well as the end consumers of these products.

Water is the resource that will determine the wealth, welfare, and stability of many countries in the twenty-first century. This book offers a new approach to managing water that will overcome the conflicts that emerge when the interactions among natural, societal, and political forces are overlooked. At the heart of these conflicts are complex water networks. In managing them, science alone is insufficient and so is policy-making that doesn't take science into account. Solutions will only emerge if a negotiated or diplomatic approach that blends science, policy, and politics is used to manage water networks. The authors show how open and constantly changing water networks can be managed successfully using collaborative adaptive techniques to build informed agreements among disciplinary experts, water users with conflicting interests, and governmental bodies with countervailing claims. Shafiqul Islam is an engineer with over twenty-five years of practical experience in addressing water issues. Lawrence Susskind is founder of MIT's Environmental Policy and Planning Program and a leader of the Program on Negotiation at Harvard Law School. Together they have developed a text that is relevant for students and experienced professionals working in a variety of engineering, science, and applied social science fields. They show how new thinking about water conflict can replace the zero-sum battles that pit experts, politicians, and stakeholders against each other in counter-productive ways. Their volume not only presents the key elements of a theory of water diplomacy; it includes excerpts and commentary from more than two dozen seminal readings as well as practice exercises that challenge readers to apply what they have learned.

Ensuring safe water supply for communities across the United States is a growing challenge in the face of aging infrastructure, impaired source water, and strained community finances. In the aftermath of the Flint lead crisis, there is an urgent need to assess the current state of US drinking water. However, no nationwide assessment has yet been conducted on trends in drinking water quality violations across several decades. Efforts to reduce violations are of national concern given that, in 2015, nearly 21 million people relied on community water systems that violated health-based quality standards. In this paper, we evaluate spatial and temporal patterns in health-related violations of the Safe Drinking Water Act using a panel dataset of 17,900 community water systems over the period 1982–2015. We also identify vulnerability factors of communities and water systems through probit regression. Increasing time trends and violation hot spots are detected in several states, particularly in the Southwest region. Repeat violations are prevalent in locations of violation hot spots, indicating that water systems in these regions struggle with recurring issues. In terms of vulnerability factors, we find that violation incidence in rural areas is substantially higher than in urbanized areas. Meanwhile, private ownership and purchased water source are associated with compliance. These findings indicate the types of underperforming systems that might benefit from assistance in achieving consistent compliance. We discuss why certain violations might be clustered in some regions and strategies for improving national drinking water quality.

Hundreds of millions of people lack access to safe water and sanitation. Will the first UN conference on water in nearly 50 years make a difference? Hundreds of millions of people lack access to safe water and sanitation. Will the first UN conference on water in nearly 50 years make a difference? Birds-eye view of a group of people walking along desert land in Somalia

Providing a scientific approach into appraising intermittent water supply (IWS) on a global scale, this book examines the problem through the analysis of available information and data based on a structured methodology for estimating the populations affected by IWS worldwide. The root causes and the implications of IWS are dealt with in a concise manner providing a detailed account of the reasons for resistance to change towards 24x7 supply.

More than 1 billion people around the world live without access to safe, potable water, in part because of poor governance and corruption. Illegal connections and substantial losses caused by deferred maintenance have eroded the revenues of water utilities, leading to a downward spiral in performance. Embezzlement of funds, bribes for access to illegal water connections, manipulation of meter counters, and collusion in public contracts add to the litany of corrupt practices. 'Improving Transparency, Integrity, and Accountability in Water Supply and Sanitation' is a useful tool for diagnosing, analyzing, and remedying systemic corruption in the water supply and sanitation sectors. It will serve as a practical guide for governments; utility regulators, managers, and staff; civil society organizations; contractors; and citizens in their quest for a model of service provision that responds to the pressing needs of people in the developing world. The book aims to increase the involvement of civil society by engaging all stakeholders in setting priorities and monitoring performance; help water and sanitation delivery contribute to poverty reduction by increasing the service quality and coverage provided by service delivery organizations to poorer communities on an equitable basis; provide a tool that promotes the financial sustainability of service delivery organizations, thus building stakeholders' confidence in those institutions' ability to expand and improve service; and raise ethical standards among all stakeholders, especially service delivery organizations, thereby instilling a sense of public service in these organizations.

A sweeping, policy-oriented account of the private and public management of the world's essential natural resource. Governments dominated water management throughout the twentieth century. Tasked with ensuring a public supply of clean, safe, reliable, and affordable water, governmental agencies controlled water administration in most of the world. They built the dams, reservoirs, and aqueducts that store water when available and move that water to areas with increasing populations and economies. Private businesses sometimes played a part in managing water, but typically in a supporting position as consultants or contractors. Today, given the global need for innovative new technologies, institutions, and financing to solve the freshwater crisis, private businesses and markets are playing a rapidly expanding role, bringing both new approaches and new challenges to a historically public field. In Liquid Asset, Barton H. Thompson, Jr. examines the growing position of the private sector in the \"business of water.\" Thompson seeks to understand the private sector's involvement in meeting the water needs of both humans and the environment, looks at the potential risks that growing private involvement poses to the public interest in water, and considers the obstacles that private organizations face in trying to participate in a traditionally governmental sector. Thompson provides a richly detailed analysis to foster both improved public policy and responsible business behavior. As the book demonstrates, the story of private businesses and water offers a window into the serious challenges facing freshwater today, and their potential solutions.