On September 4, 2010, CBS News aired a story about the controversy and impacts of hydraulic fracturing for natural gas in the Marcellus Shale. The video includes some footage showing how the drilling equipment can alter the landscape of what appears to have been a rather quiet rural neighborhood.
John Hanger, the Secretary of the Pennsylvania Department of Environmental Protection, had this to say about the natural gas industry and its resistance to disclosing the list of chemicals that they use in the process of breaking and holding open the cracks in shale so that gas will flow into their collection systems.
I think the industry is way out of bounds for not disclosing the list of chemicals. I think the industry is close to insane to have allowed that issue to become a source of suspicion.