“…Therkildsen (1988) noted failed attempts in Africa to supply water in the 1960s and 1970s, and Thompson et al ( 2001) found in East Africa that mean water use had declined between 1960s to1990s due to reduced reliability of the piped water supply, as municipal water services could not maintain the infrastructure. As with our review of water resource infrastructure, at the beginning of this section, these failures mark the limits of engineering approaches, and responses have invariably highlighted a need for greater emphasis on economic, social and political aspects, such as the need for greater partnership with communities (Rietveld etal, 2008), management at the lowest appropriate level, community ownership of schemes, full cost recovery for operation and maintenance, recognizing key roles of women and inclusion of the poor (Gine and Perez-Foguet, 2008 We conclude, therefore, that while science and engineering lie at the heart of the ecological principle, and offer potential to deliver fresh impetus in adaptive behavior at a range of scales, these are unlikely to be successful in isolation from economic and political dimensions. This is illustrated by Integrated Water Resource Management (IWRM), a key application of the ecological principle.…”