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This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.

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Some 2.5 billion gallons of water are used to frack oil or gas wells in the U.S.

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Every day.

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Nearly all of that water is lost, either in the fracking or by disposing it down a borehole.

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And industry's water consumption is dwarfed by agriculture, responsible for more than 80 percent of this country's enormous water use.

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With climate change beginning to affect water supplies, what can be done?

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A panel at the recent Advanced Research Projects Agency for Energy summit attempted to answer that question.

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In agriculture, it will take both better breeding--for more water efficient crops--and smarter irrigation.

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Our power plants could send less steam into the sky with hybrid air-and-water cooling systems.

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And local, state and federal governments could begin to reform an often hidebound water rights system.

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Not to mention that we'd all better get comfortable with the idea of reusing water over and over again.

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On the other hand, a new $1 billion facility rising on the California coast may prove, just maybe we just need to increase the water supply.

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The Poseidon desalination plant aims to turn seawater into hundreds of thousands of gallons of freshwater annually.

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The only problem is: it's expensive and it requires a lot of energy.

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And producing energy requires water, which requires energy to clean, which, well, lather, rinse, repeat.

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Your minute is up, for Scientific American 60-Second Earth. I'm David Biello.

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