The Future of Water in African Cities: Why Waste Water? This link opens in a new windowFrom the World Bank - downloadable: By 2030, Africa’s urban population will double, and the difficulties African cities currently face in providing sustainable water services will be exacerbated. The Future of Water in African Cities: Why Waste Water? argues that the traditional approach of one source, one system, and one discharge cannot close the water gap. A more integrated, sustainable, and flexible approach, which takes into account new concepts such as water fit to a purpose, is needed in African cities.This study provides examples of cities in Africa and beyond that have already implemented Integrated Urban Water Management (IUWM) approaches both in terms of technical and institutional solutions.