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June 24 -- Hydropower will most sustainably take us into our energy future. In the 11th century, the power of rivers was harnessed to grind grains into flour. By the mid-1800s, fossil fuels were discovered and began to be used prolifically. By 1920, hydropower generated almost 40 percent of the United States' electricity. As fossil fuels became more prevalent, the use of hydropower dwindled. It was after the fossil fuel scare that hydropower came back. Its use has more than doubled since the 1970s, and today, hydropower accounts for about 30 percent of the world's energy, the most of any renewable energy source. >>View Article

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