Whatever we'll be forced to do later, we should be doing now.

I became a vegetarian in 1958 and it was very difficult in those days to really maintain that because there weren't many options... alternatives. But, now, it's a growing trend because... the economics are there. See, there's simply enough people demanding it that it's profitable to supply vegetarians with those products.

If we had a hydrogen economy worldwide, every nation on earth could create its own energy source to support its economy, and the threat of war over diminishing resources would just evaporate.

War is usually fought over diminishing resources, particulary those that we perceive to be extremely valuable.

If you don't generate tension in the film to begin with... you can't really make a purse out of a sow's ear, you know.

Practically every environmental problem we have can be traced to our addiction to fossil fuels, primarily oil.

Coming back to a television series puts you back in the limelight and gives you a platform for your ideas. If you're not acting on a series, you don't get the ability to communicate to people.