The country is vastly cleaner. It was getting kind of dumpy, but especially considering the huge amount of development, it is amazingly clean and pure. It has been expensive and it has worked. Extending this to the whole world by clipping the US economy is remarkably nasty. Cutting off private development of outer space resources is even nastier and will fulfill the prophecy of the Club of Rome, and they are still out there and active.
I suppose the silver lining is if you look at what the Europeans and Canadians have done on global warming it is remarkably little, just enough to get some good press, but not enough to do serious damage to their economies. If you look at what they do and not what they say, they don't buy the bull much more than we do.