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

It's not an if - we're going to have to change. Oil is simply going to be gone.

The Age of Oil has really exhausted its usefulness, and it has actually become a danger to our lives and our ability to survive on the planet.

We should be able to support our own economy within our own borders.

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.

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.

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