Fracking – a modern method to extract oil and gas – may be contaminating drinking supplies in Wyoming. But EPA report on the impact of fracking is not conclusive.
According to the US panel, 'fracking' to release gas deposits in shale can be done in an environmentally responsible way. The industry hailed the report as refuting shrill critics, but environmentalists decried 'advocacy-based science' by a panel tilted toward the industry.
A congressional report finds that chemicals used in 'hydrofracking' to extract natural gas are known or possible human carcinogens, regulated under federal environmental laws.
Fracking, or hydraulic fracturing, is a controversial process for extracting natural gas from shale. Critics of fracking question the environmental and health effects of pumping thousands of gallons of water and chemicals underground.
Fracking opponents carried signs saying "Kids can't drink gas" and "Protect our water. Stop fracking America." Supporters, including union workers eager for jobs, carried signs that said "Yes to science, no to paranoia" and chanted "Pass gas now!"
Some scientists and citizens want firms that extract natural gas to reveal what chemicals they’re using.
Water and chemicals injected at high pressure can extract more gas – and possibly pollute drinking water.