Sir, I'll try to answer your question. The first point I'd like to make is that the issue is climate change. This is a long-term issue. You need, as you rightly mentioned, short-, medium-, and long-term goals or targets. To strengthen this bill, you need such instruments as targets and regulations. They must be progressive. You can't suddenly change everything overnight.
That's part of the reason why you can expect the climate to continue to change. There's not only inertia in the climate system; there's inertia in our technological system. You're not going to overnight change all the coal-fired power plants into something else; you're not going to get everybody to change to driving a Prius within the next week or so. So there's a time element to this.
My feeling is that the one commodity we need above all others, short of political will, is imagination. It's the imagination to imagine the new technologies; it's the imagination to imagine other lifestyles, to have other aspirations; the imagination to actually strive. I think, more than anything else, what we have to have to tackle this is imagination, and you can't legislate that, of course.