We have to get to the point where we all come together, and we realize that we're all on the same Earth, and there's one way we can fix it.

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.

By the time we see that climate change is really bad, your ability to fix it is extremely limited... The carbon gets up there, but the heating effect is delayed. And then the effect of that heat on the species and ecosystem is delayed. That means that even when you turn virtuous, things are actually going to get worse for quite a while.

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.

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

In other words, by mid-century, climate change could be just as deadly as COVID-19, and by 2100 it could be five times as deadly.