Any prudent business looks at the reality and how to maximize our investment.

I became a vegetarian 55 years ago, and I think it's one of the more important behavioral changes I ever took. The more I see of the beef industry and so on, I believe that to be true.

I think consumerism breeds dissatisfaction, and I think that the advertisers play to that. So I cannot be comfortable with that. On the other hand, the cornucopia of products and innovation - I love Apple, for example. That's a temple of consumerism in many ways.

The biggest weakness of the green-consumer movement, always, is that we tend to pick the easy-to-do things because that's where we can most readily engage people. It doesn't cost them very much to switch products or whatever it happens to be.

I think that consumerism is intrinsically a pretty flawed social system.

I'm worried about greenwashing. I think we should come down on it very, very hard, whether it's with criminal intent or actively deceptive.

The path to relative economic, social and ecological sustainability is guaranteed to be littered with failures of every nature and scale. If we recognize them and learn from them, the transition will proceed faster and in more resource-efficient ways. If, on the other hand, we prefer the short-term comfort of burying our failures, or of blaming scapegoats, the transition will be significantly slowed, or could even be derailed completely.