[on the most important 'smart decision' we should be making] We have to have a price on carbon because right now it's still free to put carbon dioxide into the atmosphere. So if you put a price on carbon that is commensurate with the damage that carbon-dioxide emissions cause, then people will be smarter. They will say, 'Well, I can spend that money and damage the planet, or I can spend less money and buy an electric car that is fed by hydro.'
