Hydraulic fracturing is a 50-year old practice that uses high-pressure water to break up rock layers and release trapped oil or gas. It has opened up huge new energy reserves, but some citizens and environmental groups are worried that chemicals in fracking water will contaminate aquifers. The EPA has investigated many claims but has yet to confirm one. Still, regulators are looking harder at fracking, while the natural gas industry works to better manage waste water.
They key issues of natural gas and fracking, with Dr. Scott Tinker
Dr. Steve Koonin US Undersecretary of Energy
Explaining hydraulic fracturing and unconventional gasFull Interview
Scott Anderson Senior Policy Advisor, Environmental Defense Fund
On fracking and improved regulationFull Interview
Dr. Ernie Moniz Director, MIT Energy Initiative
On regulating hydraulic fracturingFull Interview