Fracking wastewater: A tough problem

The AP has a really good story on horizontal natural-gas drilling that's been making the rounds of many newspapers, both in and out of the Marcellus Shale.

Explained: why "fracking" creates more waste than conventional techniques, why getting rid of the powerfully salty wastewater is a far tougher problem in New York than it is in Texas, and why some bright entrepreneur is probably going to make a killing on recycling the stuff.

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