A Dam Revival, Despite Risks
Private funding brings a boom in Hydropower, with high costs
The Cahora Bassa Dam in Mozambique. A 2012 study found that ‘‘emissions from tropical hydropower are often underestimated and can exceed those of fossil fuel for decades.’’ CreditAndre Kosters/European Pressphoto Agency
Hydropower. Il potere dell’acqua. Potenza dell’acqua. Acqua intesa come risorsa, acqua come energia vitale, “acqua” che fa rima con “vita”. Come dovrebbe essere percepita, in senso ampio. Di seguito una serie di larghe potenzialità, che danno luogo ad altrettante considerazioni da fare.
While some dams in the United States and Europe are being decommissioned, a dam-building boom is underway in developing countries. It is a shift from the 1990s, when amid concerns about environmental impacts and displaced people, multilateral lenders like the World Bank backed away from large hydroelectric power projects.
World hydropower production will grow from 4,000 terawatt hours now — about the annual power output of the United States — to 4,670 terawatt hours in 2020, according to Maria van der Hoeven, executive director of the International Energy Agency, in Paris. The Intergovernmental Panel on Climate Change predicts that hydropower generation will double in China between 2008 and 2035, and triple in India and Africa. […]