By Stephen Currie
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The question is, is [ocean power] as benign as everyone wants to say it is? ” —Fran Recht, official with the Pacific States Marine Fisheries Commission. M ost scientists agree that there is potential for growth in the hydroelectric industry. Most of that potential comes not from traditional river technology, though, but from an intriguing new form of hydropower: the tides, currents, and waves of the oceans. Although no one yet knows how much energy these sources can realistically provide, many researchers are eagerly pursuing this question.
Nelder is an author who writes about energy and the energy industry. 30 Facts and Illustrations Can Hydropower Reduce Dependency on Fossil Fuels? • As of 2010 the three countries that produced the most hydropower were China, Canada, and Brazil. • About 50 percent of the energy in fossil fuels can be converted into electricity, compared to about 90 percent of the energy in falling water. • China expects hydropower to provide about 70 percent of its electricity by 2020; in 2008 the figure was about 18 percent.
Many experts place part of the blame on the construction of the Three Gorges Dam and the changes the construction caused to the waters of the Yangtze River, the dolphin’s primary home. 45 Hydropower Energy Versus the Environment Polling organizations often ask Americans their views on questions concerning energy and the environment. One such survey was done by the Gallup Poll in May 2010. With which one of these statements about the environment and energy production do you most agree? Protection of the environment should be given priority, even at the risk of limiting the amount of energy supplies—such as oil, gas and coal—which the United States produces.