We need to grow food, and we need to grow fuel. Imagine if, instead of dust rising into the sky, the carbon started returning to the Earth.

The tour can keep on going with another headliner. It's about sustainability and renewability in the future, loving Earth for what it is. We want to do the right thing. That's kind of the idea.

I love it when people yell at me about the environment and then I tell 'em I'm burning 90% cleaner than them.

There's whistling coming out of a forest somehow; there's an entire dead species of tree right there in front of you, and not just a few trees, it goes for miles and miles. So, with that background, and then knowing what's going on in the world . . . I don't like to dwell on it much, but I think everybody's terrified.

There must be a better way to make the things we want, a way that doesn't spoil the sky, or the rain or the land.

Climate change is a terrible problem, and it absolutely needs to be solved. It deserves to be a huge priority.