It's not as easy as "stricter enforcement of property rights by the courts" ... litigation is EXPENSIVE. The whole system is a racket.
I am sure that EPA is pretty far down on Paul's list of "needs to go", but we'll see. I think this is probably one area that will have to see some sort of compromise of pure free marketism, at least until such time as people wake up and realize it's your own backyard you are destroying through waste/pollution.
Fusion power will go a long way to solving our problems, of course, as the biggest polluters are power plants.