The use of fracking technology is discussed now in Germany, and the government just published a new expert study that recommends proceeding with caution.
There are risks for the ground water associated with pushing thousands of tons of toxic substances into the ground. Therefore, any such project will need to pass a strict environmental assessment test, and stay out of areas vital for drinking water supply.
As far as I am concerned, all the unconventional gas reserves should stay right where they are. Most of the fossil fuel needs to stay in the ground. If so, there is no point in taking any environmental risk to get at unconventional gas. The consequence of higher gas prices is a good thing, since it leads to less consumption.