Race Is On to Clean Up Hydraulic Fracturing

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Hydraulic fracturing, or fracking, has raised fears around the world that the procedure needed to coax shale oil and gas out of tightly packed rock could cause pollution damaging to human health. The process uses huge amounts of water, and environmentalists, landowners and others worry that drinking-water supplies could be contaminated.

Start-ups, venture capitalists and large companies, including Veolia and Siemens, see riches in water cleanup and are developing and testing various technologies. They are also working in other areas besides shale gas, including Canada’s oil sands and the use of water to pressure oil out of wells.

Read more: http://nyti.ms/13fSuSh

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