So I'm intrigued to read (in last week's Economist) about Maria Cantwell's "cap-and-dividend" proposal. From the description given there (and I need to learn more about the details), it sounds delightfully sensible. Basically, the notion is that any carbon cap will drive up prices: indeed, that's the point of any sensible proposal. So fine: auction off limited permits for all carbon-based fuels, and then bribe everybody with the proceeds. Seriously: take the money from the auctions, and distribute it to the populace. Their back-of-the-napkin kickback calculation is $1000 for a family of four.
It's not perfect, mind -- a carbon-tax system would still be simpler than a cap-based one -- but it's still far simpler than cap-and-trade. If the auction is mandatory and universal, it's likely to succeed in the goal of raising prices and thereby reducing carbon output. And the bribe (which is effectively a progressive redistributive tax, but a very well-disguised one) could be *very* popular if it was marketed properly.
I confess that I'm seesawing between being appalled at the concept, and admiring its elegance. The citizens'-responsibility puritan in me is vaguely unhappy at the notion of bribing the citizens to get them to agree to a system that will help everyone. But the economist in me just loves the way it aligns incentives, and the armchair political quarterback admires the simplicity of the message...