Out of sight (and smell), natural gas slowly bubbled up into Norma Fiorentino’s private water well near the town of Dimock in northeastern Pennsylvania--in the heart of the new fracking boom in the U.S. Then, on New Year's Day 2009, when a mechanical pump flicked on and provided the spark, Fiorentino's backyard exploded. She and many others blame the blast on fracking --the colloquial name for the natural gas drilling process that combines horizontal drilling and the fracturing of shale deep underground with high-pressure water to create a path for gas to flow back up the well.
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