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1 .This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.
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2 .Last month, President Obama pledged nearly half a billion dollars toward the development of solar and geothermal energies.
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3 .But what about wind?
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4 .A team of scientists estimates that wind turbines in the continental U.S.could produce 16 times more electricity than we currently use.
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5 .They present their data in the current Proceedings of the National Academy of Sciences.
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6 .We all know that wind can be harnessed to do work.
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7 .But this power source can be a bit fickle: today it might gust, while tomorrow could bring barely a breeze.
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8 .So how much can we count on the movement of air to meet all our energy needs?
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9 .The scientists used data from satellites, balloons, and aircrafts, to estimate wind speeds around the planet.
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10 .They excluded cities, forests, and ice-covered areas, which would all be hard to harvest.
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11 .Crunching the numbers, they concluded that a global network of land-based turbines could make 40 times more electricity than the world currently consumes,
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12 .even if they only operated at 20 percent of their capacity.
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13 .People may balk at the sight of a sea of wind turbines.
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14 .And flying wildlife may be bollixed by the blades.
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15 .But wind power's benefits may blow away its problems.
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16 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.
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