Environmental impact of hydraulic fracturing includes the potential contamination of ground water, risks to air quality, noise pollution, the potential migration of gases and hydraulic fracturing chemicals to the surface, the potential mishandling of waste, and the health effects of these. Many cases of suspected groundwater contamination have been documented. Most of the studies on the environmental impact of hydraulic fracturing have been conducted in the United States.
The above is the first paragraph on Wiki about the environmental impacts of fracking. Even if we stretch this and say these impacts are "possible" impacts (which they're not) Would we really and truly want to take a chance with something so precious as our ground water and our air quality? Last I checked we ALL needed those two little silly things to survive!
Have a watch of "Gasland" if you haven't seen it. It's an eye opener and brilliant Documentary. I learned from it anyway and that's always good!
It's such a beautiful place and the only one we have! Let's take care of it!