The incoming class of House and Senate Republicans include at least 47 who deny that scientific data prove human activity is warming the planet. Here's how they may complicate the Obama Administration's climate-change agenda
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.
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.
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.