Predators make it much more difficult to find consensus. It's a lot easier to agree about birds and plants than about animals that endanger people and livestock.

We also know that China and India, as their economies ramp up, are using more and more energy.

Growing up in Denver, I'm sure it started with loving the Colorado mountains.

Why has it seemed that the only way to protect the environment is with heavy-handed government regulation?

I was a little too young to be a hippie.

My schedulers keep getting driven crazy by the fact that they can't fit hikes in my schedule.

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