The Bush White House has from day one underplayed environmental risks associated with the use of fossil fuels. Global warming might be the catalyst, but if we wait too long, we will be unable to stave off its worst effects. To wean the US off petroleum, energy alternatives which don't require much energy to grow or process are needed, alongside a good (but not suffocating) amount of government subsidies, with the near-term goal to be commercially viable.
Note: This article contains amended comments I've made at commondreams.org regarding Areva's leaks in France. You can examine articles posted on this topic there by searching their archive.
"French Government’s Deception on Deadly Tricastin Spill," by Bob Nichols
"New Uranium Leak Discovered at French Nuclear Site," Agence France Presse