NRC report concludes hydraulic fracturing poses low risk for causing earthquakes, but risks are higher for wastewater injection wells; CCS impact undetermined
Green Car Congress
JUNE 17, 2012
The process cracks the shale rock formation and allows natural gas to escape and flow up the well, along with some wastewater. Hydraulic fracturing (“fracking”) extracts natural gas by injecting a mixture of water, sand, and chemicals in short bursts at high pressure into deep underground wells.
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