Hydraulic Fracturing, also known as fracking, is a method of drilling deep beneath the surface to extract shale gas, an energy source. Shale gas is embedded in dense rock, so drillers inject a mixture of water, sand, and chemicals to fracture the rock which opens up fissures in the stone through which the gas can escape. Chemicals used for fracking are often hazardous and cancer-causing agents known to contaminate drinking water near fracking sites.
