A new report issued by Peruvian NGO Environmental and Natural Resrouces Law (DAR) counts 412 hydro-electric dams to be built across the Amazon basin and its headwaters if current plans go ahead, potentially leading to the "end of free-flowing rivers" and contributing to "ecosystem collapse." Of the 412 dams already in operation, under construction or proposed, 256 are in Brazil, 77 in Peru, 55 in Ecuador, 14 in Bolivia, six in Venezuela, two in Guyana, and one each in Colombia, French Guyana and Surinam, said anthropologist Paul Little at the launch of the English version of the report, "Mega-Development Projects in Amazonia: A Geopolitical and Socioenvironmental Primer." (PDF). The report finds: "This new wave of dam building in the headwaters of the Basin is a 'hydrological experiment' of continental proportions, yet little is known scientifically of pan-Amazonian hydrological dynamics, creating the risk of provoking irreversible changes in rivers." (The Guardian's Andes to the Amazon blog, May 6)