terça-feira, 15 de maio de 2012
English.Hydraulic Fracturing (“Fracking”) and the HBO Movie GasLand
On June 21, 2010, HBO aired a film called GasLand about the process of hydraulic fracturing (“fracking”) to bring natural gas up from deep shale or coalbed methane formations found in many areas of the United States. Hydraulic fracturing involves injecting a mixture of more than 99 percent water and sand and approximately 0.5 percent chemical additives under high pressure to fracture non-porous hard rock and allow natural gas to travel to the surface. The film suggests that hydraulic fracturing caused water contamination and flaming tap water. The Colorado Oil and Gas Conservation Commission in 2008 investigated the landowner’s water depicted in GasLand and determined the water was flammable because his water well had been drilled into a naturally-occurring pocket of natural gas.
Notícia retirada do site: http://www.naturalgas.org/
Postado por Clarice Pedroso. às 13:20