China right now exploit shale gas as a "technological acquisition basis", so as to keep the drilling technology and to prevent it from falter away. I am against exploitation of Shale gas. The environmental harm is immense. Once you frack, the entire aquifer is destroy.
The water is no longer drinkable and it is toxic.
This could affect few hundreds of sqkm.
For US this may be ok for a while. The fracking zone of US is not dry and not lack of water. So no need ground water.
But for China this is not ok in many places, even if in SIchuan where rainfall is abundant. (long story)