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"Fracking", a Way to Extract Natural Gas, Stirs Debate

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Land is cleared for drilling in Pennsylvania’s Loyalstock State Forest (Photo: Pennsylvania DCNR)
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Land is cleared for drilling in Pennsylvania’s Loyalstock State Forest (Photo: Pennsylvania DCNR)

On a job in northern Pennsylvania, Chesapeake Energy Corporation trucks ship in water, sand and production chemicals for fracturing. (Rosanne Skirble/VOA)
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On a job in northern Pennsylvania, Chesapeake Energy Corporation trucks ship in water, sand and production chemicals for fracturing. (Rosanne Skirble/VOA)

Gas operations are common in rural Pennsylvania, which since 2005 has issued 4,000 drilling permits. (Rosanne Skirble/VOA)
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Gas operations are common in rural Pennsylvania, which since 2005 has issued 4,000 drilling permits. (Rosanne Skirble/VOA)

The 15-20 million liters of water used to hydraulically frack each well are either trucked to the site or pumped over ground from nearby water sources. Credit: Marcellus Shale U.S.
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The 15-20 million liters of water used to hydraulically frack each well are either trucked to the site or pumped over ground from nearby water sources. Credit: Marcellus Shale U.S.

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