Air is one we hold in common; it has a limited carrying capacity for pollutants and that's being used up by those who pollute the atmosphere. So we have to stop that externality. We would never allow a utility to put their coal slag in a dump truck and back it up to the city park and dump it in unlimited amounts for free. But that is exactly what we do with carbon dioxide and methane.

Healing is a moral thing to do.

We clearly need to break our addiction on Saudi Arabian oil that is a security threat to the United States.

I do care about the mercury contamination which this country will be experiencing because of the attempted sellout by this administration to special interests which will result in more mercury in the blood of young children in America.

I'm sure that in the fullness of time we'll learn that one or more of these seemingly promising technologies were dead ends. And that's the nature of innovation, and that's why we should spread our bets; we should not put our eggs in any one basket. Some of these will be grand successes, some of them will be average, and some of them will be abject failures.

We need to get our sons and daughters home and their responsibility for the security of Iraq needs to be assumed by Iraqis who will stand up and toe the line for their countries.

When we design our national R&D programs, we ought to ensure a place for the small, the new, and the cutting-edge.