
Evidence fracking taints drinking water
December 9, 2011 8:22 AM
The EPA says it has evidence that fracking, a controversial technique used to extract natural gas from deep underground, can contaminate drinking water. Betty Nguyen reports.
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December 9, 2011 8:22 AM
The EPA says it has evidence that fracking, a controversial technique used to extract natural gas from deep underground, can contaminate drinking water. Betty Nguyen reports.
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