by Jay Field
Apr 23, 2013 (All Things Considered) — Energy companies are using a drilling technique known as fracking to extract natural gas underground. Many people raise questions about the environmental impact, but there is no doubt fracking has produced lots of natural gas and driven down the price. That has led energy-hungry manufacturers to build plants in fracking hot spots like Texas and Pennsylvania. But even in old factories -- far from the drilling or even the pipelines -- cheap natural gas is providing a competitive edge.
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