There are basically two systems for managing carbon emissions. One is a carbon tax, in which you put a price on carbon. The other is called a cap and trade system, where you put an overall economy-wide cap in carbon emissions, issue carbon credits, and let groups trade the 'right to pollute'. Cap and trade is a 'market' based solution, and so it's the one being pushed by a broad range of industry groups and DC greens. It's also the favored approach of Barack Obama. Still, it's not looking likely to happen out of the gate.
David Roberts points to this quote from Senator Clair McCaskill on cap and trade legislation.
"I think a delay may be necessary," she continued. "Yes, we've got to do something. Yes, we have to move forward. But we can't kill the business climate at the same time. I'm from a state where most of the people who turn on the lights in the state get it from utility companies that depend on coal. And the cost of switching all that to clean coal technology or to alternative sources is going to be borne by them -- by regular folks who are trying to figure out how to pay their mortgages right now."
Meanwhile, the cap and trade system in Europe is a fiasco, since designing an emissions credit system from scratch, loopholes and all, is proving to be a boon for lobbyists and polluters while not doing so much for carbon emissions. An economic downturn should reduce carbon emissions on its own (China's exports are already dropping), and depending on infrastructure investment (like electrifying our auto fleet), that reduction could be sustained for some time.
Eventually, a carbon tax and a whole set of carbon-focused regulations should be part of our international currency regime, but I don't see this happening soon for a whole set of political reasons.