We [USA and China] have a common responsibility with different numerical targets, and that's the situation ultimately we are going to have with China. We emit six times more per person than they do. It's hard to tell them to cut theirs in half right now until we start moving. Being the ostrich with your head in the sand and tail feathers in the air like some would have us to do while China continues to pollute is simply not an option.

President Bush's proposal to focus our resources on sending humans to Mars is intriguing, but it is not the most compelling reason that Americans ought to focus our interest on the Red Planet.

Because the sad fact is that the Enron Corporation and others manipulated with unfortunately great effect the energy market in the West Coast starting in 2000.

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.

Back in the mid-1970s, we adopted some fairly ambitious goals to improve efficiency of our cars. What did we get? We got a tremendous boost in efficiency.

We had some major successes and we did so because the country embraced the spirit of Earth Day and embraced this concept that we have to have forward-looking, visionary environmental policy and energy policy in this country.

I am going to leave everything on the field. I am going everywhere, and I am going to listen to everybody.