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Companies Seek Profits Cleaning Fracking Water


Companies Seek Profits Cleaning Fracking Water
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The increased use of horizontal drilling and hydraulic fracturing -- to extract natural gas and oil in many parts of the United States -- has dramatically increased the nation's energy supply, but also raised concerns about such issues as water pollution. Private companies are now rushing into the relatively new market for recycling drill site water. VOA's Greg Flakus has more on the story from Houston.

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