The hydraulic fracturing also known as “fracking” is the process of releasing natural gas trapped deep within underground rock formations by pumping large amounts of high pressured water combined with chemicals and sand. Though many politicians and industry leaders say the process is safe and a means for energy independence, there are critics who claim that this type of drilling can threaten air, soil and water quality.
James Clift, policy director at Michigan Environmental Council discusses the environmental issues around fracking, including water usage and methane gas emissions.
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I listened and found a lot of good information.
But, I didn’t hear, (or I missed it), where it was explained what happens to the toxic water mix that does NOT come back to the surface as “flow back”. According to some, it is about 80% – 60% that can stay in the ground.
There is an important study by the EPA out in Pavillion, Colorado in December of 2011? that suggested seepage upward into the water supply form this mixture that stays in the ground.
I didn’t hear where this important concern was addressed.
Did I miss it?