Environmental and Social Impacts of Hydroelectric Dams in Brazilian Amazonia: Implications for the Aluminum Industry

Aluminum smelting consumes large amounts of electricity and helps drive dam-building worldwide. Brazil plans to build dozens of hydroelectric dams in its Amazon region and in neighboring countries. Benefits are much less than is portrayed, partly because electricity is exported in electro-intensive products such as aluminum, creating little employment in Brazil. Dams perversely affect politics and social policies. Aluminum export offers an example of how a rethinking of energy use needs to be the starting point for revising energy policy. Dam impacts have been systematically underestimated, including population displacement and loss of livelihood (especially fisheries), biodiversity loss, and greenhouse-gas emissions.