Today, our incentives aren't set up well - you can make a lot of money burning fossil fuels, digging up wetlands, pumping fossil water out of aquifers that will take 10,000 years to recharge, overfishing species in international waters that are close to collapse, and so on.

Whatever my current beliefs are, on any topic, they're all open to being changed by the right facts and the right evidence.

New technology lets you grow the resource pie, which is the only way you can get out between that pincer of rising consumption (as we end poverty) and environmental and natural resource depletion.

Agriculture is the #1 source of deforestation. By some estimates it accounts for 80% of the forests chopped down in the tropics.

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.

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

You have to be willing to spend an awful lot in that R&D phase before you see the benefits. When you look at the companies that have really won customers over in technology - say, Apple and Google - you find that they spend billions of dollars on R&D each year, often spending that much on a product before they ever make a dime back in profits.