The Gary Null Blog

Drive through northern Pennsylvania and you'll see barns, cows, silos and drilling rigs perched on big, concrete pads. Pennsylvania is at the center of a natural gas boom. New technology is pushing gas out of huge shale deposits underground. That's created jobs and wealth, but it may be damaging drinking water. That's because when you "frack," as hydraulic fracturing is called, you pump millions of gallons of fluids underground. That cracks the shale a mile deep and drives natural gas up to the surface — gas that otherwise could never be tapped.