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The Future of Water in African Cities : Why Waste Water? Integrated Urban Water Management, Background ReportThe primary objective of this report is to provide a coherent and comprehensive review on integrated urban water management (IUWM) approach to assist public authorities to identify and address the future challenges of urban water supply, sanitation and flood management in African cities. This report presents the existing and future challenges in Africa, the possible options for innovative technologies and approaches for their breakthrough and a way forward to achieve the objectives of IUWM. It highlights technical and institutional constraints of the IUWM in Africa. It presents the global and African best practices and trends in IUWM which are linked to urban development and which have very good lessons learnt that can be shared within and among the cities in Africa. The report consists of four chapters. Chapter two reviews the existing condition, future challenges and opportunities in Urban Water Sector (UWS) in Africa. The review covers the current situation of urban water systems and their management approaches; the major future change pressures (climate change, population growth and urbanization, deterioration of infrastructure systems) and their impacts on UWS; and opportunities for implementing the IUWM approach in Africa. Chapter three introduces the key concepts and conceptual framework of IUWM. The framework has been supplemented by appropriate technologies and innovative approaches of IUWM that will be suitable for cities in Africa. This chapter also presents the global experiences and best practices of IUWM that can be shared within the Africa cities. Chapter four presents case studies to demonstrate how the IUWM framework can be operationalized and to select the appropriate technologies and approaches as discussed in chapter 3 based on the different typologies of the cities and development stages in Africa. The typologies include an emerging town in Uganda (Masindi), a city with partially developed infrastructure in Ghana (Accra) and fully developed city in South Africa (Cape Town). Based on the cases, a few recommendations (road map) for the implementation of IUWM approach for other cities in Africa have been presented in chapter four.
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Armenia : Towards Integrated Water Resources ManagementThe objective of this paper is to examine the challenges in the water sector faced by Armenia today, and outline options for management and allocation of its water resources in the future, considering the need for a stable, transparent apublic sector management framework and sustainable resource use for long-term private investment and job creation, and for appropriate balances among water uses for domestic, industrial, agriculture, electricity generation, watershed protection, and ecological purposes. The report builds on the recommendations of the Integrated Water Resources Management Planning (IWRMP) Study, which was supported by the World Bank, financed by the Government of Netherlands, and completed in 2001. The report also builds on experience with project implementation to date in water-related sectors. The report suggests that a water management strategy that focuses on rehabilitation and reduction of water losses, and balances for drinking, irrigation, hydropower, and environmental use is likely to have the highest welfare gains. Further, a strategy that uses economic instruments to manage demand, and increases private sector participation and local stakeholder responsibility for system operation, with the public sector maintaining a key role in overall water resources management, will help improve the efficiency of water use.
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Grow in Concert with Nature : Sustaining East Asia's Water Resources through Green Water DefenseAs countries develop, the demand for water increases while water supply becomes less certain and is often not enough to meet demand. In general, pressures from both environment and human activities can increase the likelihood of water scarcity. Such pressures include increased socio-economic development and population growth, change in people's diets, competition for available water among different user sectors and growing climate variability. Climate change is likely to exacerbate the existing demand and supply stresses, particularly when more frequent and extreme droughts and floods, as well as rising sea level are becoming more evident. In temperate, sub-temperate regions, less rainfall and longer dry seasons are expected. In tropical areas, rainfall is predicted to be similar or greater in terms of annual average volumes, more intense and severe storms and seasonal droughts (IPCC, 2007). These pressures will test the effectiveness of water resource management systems in providing a consistent and secure water supply for all users, with minimum externalities. This study will assess advances in management practices, institutional and technological innovations for managing water scarcity sustainably under a changing climate. This study of 'sustaining East Asia's water resources through Green Water Defense (GWD) is a sub-study of the 'towards GWD in East Asia' study and is complemented by another sub-study 'green water defense for flood risk management in East Asia' that focuses on flood management in delta regions.