The menu of policy options for reducing greenhouse gas emissions and tackling climate change is pretty lengthy, and the portions offered are quite substantial. Congress now has to make the choice of which regulatory option to order, and as we saw in last week’s hearings at the Senate Environment and Public Works Committee, they are open to recommendations. One interaction on Thursday  between Senator Arlen Specter (D-PA) and Fred Krupp , President of the Environmental Defense Fund, highlighted the need to pick a single, effective strategy to tackle climate change and not overstuff our economy with duplicative regulations. The exchange focused on whether the EPA should continue to proceed with regulations through the Clean Air Act’s New Source Review  (NSR) program even if a comprehensive climate change program is enacted.
Given existing requirements, regulation of greenhouse gases under any provisions of the Clean Air Act will trigger NSR. Under NSR rules, the construction of new stationary sources and major modifications of existing ones must be permitted to ensure that they will not contribute to significant deterioration of air quality. While NSR has long been used to regulate traditional air pollutants, when it comes to feeding an appetite for climate change regulation, NSR doesn’t really hit the spot. NSR is rather inflexible, costly to implement, and results in relatively limited emission reductions. Given the difficulty in developing standards for the large number of sources that emit greenhouse gases and the need to provide incentives for technological change in order to achieve deep reductions over time, new source review simply isn't the right recipe for our current needs.
This chef’s recommendation: a well-designed cap-and-trade program  that is aggressive enough to yield needed reductions in greenhouse gas emissions while spurring the technological innovations we need to make those reductions and grow our economy. Enactment of a cap-and-trade program means we can send back duplicative programs like NSR and still be satisfied.
Sure, we’ll need complementary policies that work in a coordinated fashion with a cap-and-trade program. These side dishes of the cap-and-trade meal are targeted programs that are designed to enhance cap-and-trade’s impacts without getting in the way of the functioning of the primary program. A comprehensive climate bill can work just fine without NSR.
Michael Tubman is the Congressional Affairs Fellow