All of the economic signals in the marketplace are essentially subsidizing the use of dirty fossil fuels and penalizing clean energy. There's really only one entity in society that can solve that problem, and that is government. And the air is a scarce resource.

Renewable energy also creates more jobs than other sources of energy - most of these will be created in the struggling manufacturing sector, which will pioneer the new energy future by investment that allows manufacturers to retool and adopt new technologies and methods.

I talk about reducing our dependence on foreign oil. If we're buying electricity from a solar-thermal plant in Tijuana, I'm not sure we should say that's evil. If we are buying wind power from Alberta, I don't have a huge objection to that.

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've introduced the New Apollo Energy Act, which is, I think, safe to say the most comprehensive and aggressive bill that has been introduced in Congress because it does have the scale, scope, and ambition of the original Apollo Project, and it attacks the problem in every way you can imagine. There's no silver bullet here, but there are lots of opportunities.

The fact is that we cannot drill our way to independence. We cannot drill our way to freedom, and we cannot drill our way to create jobs in this country.

We allow it to be dumped into this community asset, which is our one and only atmosphere. So that has to change, and there's really only one entity that can do that. So we have proposed a cap-and-trade system to stop that unlimited pollution, to use the forces of the market to efficiently allocate scarce permits to allow CO2 into the atmosphere. That's just one of 500 things we need to do, but it's probably the granddaddy of them all.