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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.

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Last month, President Obama pledged nearly half a billion dollars toward the development of solar and geothermal energies.

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But what about wind?

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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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They present their data in the current Proceedings of the National Academy of Sciences.

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We all know that wind can be harnessed to do work.

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But this power source can be a bit fickle: today it might gust, while tomorrow could bring barely a breeze.

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So how much can we count on the movement of air to meet all our energy needs?

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The scientists used data from satellites, balloons, and aircrafts, to estimate wind speeds around the planet.

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They excluded cities, forests, and ice-covered areas, which would all be hard to harvest.

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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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even if they only operated at 20 percent of their capacity.

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People may balk at the sight of a sea of wind turbines.

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And flying wildlife may be bollixed by the blades.

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But wind power's benefits may blow away its problems.

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Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.

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