Europe's population density lends itself quite well to the modes that you've described. The US doesn't.

As for the comments on "safe" nuclear energy, I've participated in several case studies. It is extremely safe, and I would welcome it in my back yard. And France (and others) use it extensively. Last time I checked, France was in Europe. Hmmm....

And yes, we have done the right things, when many other countries have refused to, other possibilities included. For all.