“While we often assume that the benefits of improving water and sanitation systems always outweigh the costs, this is not always true”, say Dale Whittington [photo left] and Bjørn Lomborg [photo right]. New research for Copenhagen Consensus reveals that the full cost of piping water to a household is as high as $80 per month – more than most households in rich countries pay and far beyond the means of most families in developing countries. [...]. The health advantages of providing networked water supplies are less dramatic than is often assumed. [...] Just as the conventional wisdom that all networked water and sanitation systems are good investments can be wrong, it can be wrong in assuming that all dams are bad investments.
Download the full paper and executive summary of the challenge paper by Dale Whittington et al here
Read more: Project Syndicate, May 2008