I actually want to pick up from where Mr. Manning was beginning to point the direction. There are a couple of areas that I want to probe. One is on the international target side, but I'll get to that in a moment.
I want to talk about the challenge to imagine, as Mr. Stone put it, the keys to creating the environmentally sustainable economy. Can you enlighten us a little bit in that direction?
In terms of the science, you've certainly painted some of the realities we could be facing over the next few decades. Can you point us in the direction of some of the ways that we need to change? What are those keys to the environmentally sustainable economy, in your opinion?