We must also suffer the consequences of our past decisions. And for that, we must open our hearts to those in need.

We have to fix climate change with the people we have right now, and to a large extent with the perspectives we have right now as well.

I think the biggest pushback comes from people who perceive me to be a threat. Having bloggers who are dedicated to making up false information about you, having anonymous people write nasty emails and letters, having organizations file legal requests for your work-related emails, and all the other things that happen can be very depressing and discouraging.

If we smoke, there's no magic number of cigarettes, or number of years, that we can smoke before we know we'll get lung cancer.

When I talk to my neighbor, or to someone at church who doesn't accept that the planet is changing, I know that they don't know any better. They've been told this information by somebody they trust and it's not their fault. They've just never heard otherwise.

I think it's interesting that the United States and Australia are two of the most individualistic nations in the entire world in terms of national personality.

We're not paying a real price for carbon. If we were, we wouldn't be using as much. We need to have the right perspective. It's not just about next quarter's financial return. It's about where we want to be in ten years.