Should we build more large dams? The actual costs of hydropower megaproject development

Should we build more large dams? The actual costs of hydropower megaproject development, By Bent Flyvbjerg, Alexander Budzier, Daniel Lunn. An important scientific study by University of Oxford researchers on hydropower mega-dams built between 1934 and 2007 (245 dams in 65 countries).
www.sciencedirect.com/science/article/pii/S0301421513010926