Human beings are going to be relying on natural resources for a long time.

I spend a year at the Hoover Institute at Stanford, researching market approaches to air pollution control.

Human beings are going to be relying on natural resources for a long time.

Local innovation and initiative can help us better understand how to protect our environment.

I think today we recognize that economic activity needs to search for ways to protect the environment.

I think the greatest challenge in environmentalism and the most rewarding challenge is trying to figure out how humans can meet their needs while protecting the environment.

What's near and dear to my heart is cooperative conservation.