The more widely you can spread this notion of achieving ROI by preserving and improving ecosystems, the better.

Ozone and climate are global issues, and it's hard to find a way in which the benefits of shutting down carbon emissions are going to pay for themselves for any given power-plant, say.

When you're managing a large number of people, you learn that incentives matter tremendously. You really want people to be rewarded for doing the right thing for the customers and the organization.

The more widely you can spread this notion of achieving ROI by preserving and improving ecosystems, the better.

Often an idea has impact far larger than the person who originated it.

On almost every environmental issue I care about, in fact, I've been wrong at one point or another. I used to think that climate change was no big deal, that most environmental problems were massive exaggerations, that oil reserves were effectively unlimited, and more.

I think the environmental movement is now so large and diverse that it's hard to talk of it as a single entity.