Do concrete and uranium grow on trees?

Nuclear may be necessary, but it sure as heck isn't "clean" or emissions-free.

Concrete: http://www.treehugger.com/files/2005/12/sarah_harmer_on.php

Uranium: http://en.wikipedia.org/wiki/Uranium_mining#Health_risks_of_uranium_mining

The politicians should scrap the rhetoric and give it to us straight. A sustainable energy system IS possible, but it requires a departure from traditional Modern energy mindsets.