The EPA is not told what is in the fracking fluid. They are injecting the stuff right into the earth, including the water table -- there is no way of knowing where it all goes, and things do not always work as planned. Just ask BP.
Is the risk of poisoning the water we all depend on to live, worth the temporary bit of energy? What if we produced methane from plant and animal waste -- i.e. renewably instead? So rather than risk, we get the benefit of organic fertilizer, and energy too.
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