The U.S. Environmental Protection Agency has for the first time implicated a connection between "fracking" and contamination of ground water. The controversial method of natural gas and oil extraction consists of injecting high-pressure water and chemicals into the ground in order to more easily access the oil and gas. Robert Siegel speaks with NPR's Elizabeth Shogren about the report.
EPA Connects 'Franking' With Water Contamination
By editor • Dec 8, 2011