Mandatory Cap-and-Trade Program

Already on life support, legislation to create a market for carbon emissions is now considered dead in the next Congress.

Voluntary Carbon Trading

The Chicago Climate Exchange announced in October it would shut down a voluntary carbon-trading market at the end of the year after determining that it was unlikely Congress would force emissions cuts.

Environmental Protection Agency Rules

Republicans and coal-state Democrats could team up to pass legislation to stop or slow down EPA rules that would force power plants and large factories to cut greenhouse gas pollution.

Climate-Change Oversight

Representative Darrell Issa (R-Calif.), incoming chairman of the House Oversight and Government Reform Committee, plans to investigate how EPA's clean-air rules may affect the economy.

Stimulus Funds

Republicans may try to rescind the $23 billion in stimulus funds that have yet to be spent by the Energy Dept. and curtail R&D subsidies for solar, wind, and electric cars and batteries.

Data: Bloomberg, Energy Dept.