Joe Nocera, a thoughtful analyst on the New York Times, points out:
... lowering methane emissions [in tracking] does not require enormously expensive new technology. It can be done with technology that already exists and at fairly minimal cost. I’ve seen estimates that it would add a penny to the current price of natural gas. What’s more, a 50 percent reduction in methane emissions is the equivalent to closing 90 coal-fired power plants, according to the Environmental Defense Fund. [Joe's article here]
Fracking is here to stay. Best make it as friendly as possible. And it seems not to be too hard or even expensive.