Good link. I too have my doubts about the veracity of "Gasland." Unfortunately, the EPA report on fracking hazards isn't due out for a couple years. In the meantime we're at the mercy of biased claims from both sides of the fracking debate.

But I don't think drinking water contamination is the biggest risk of fracking. I'm more concerned that fracking is making hydrocarbon energy cheap again. A huge amount of natural gas is coming onto the world markets right now, and it's available at very chepa prices compared to other energy sources. Unfortunately, natural gas does emit CO2 and other pollutants==even if to a lesser extent than coal and petroleum. Also, as I mentioned earlier, it's this cheap natural gas that's making the recovery and refining of oil sands and oil shale feasible. And that is a very scary idea!