Section 115 of the Clean Air Act - A Useful Tool for Climate Change?
We are not going to have Congressional action on a regime for reducing greenhouse gas emissions by the time EPA will feel compelled to respond to the Supreme Court's direction in the Massachusetts case and announce whether CO2 emissions endanger public health or welfare. If endangerment is found under Section 109 or 202 of the Act, it appears to lead to ambient air quality standards for CO2 which are then to be met through state implementation plans. By controlling the sources of CO2 within its borders, no state is likely to be able to reduce CO2 to whatever ambient level is established. This is the practical result of the fact that greenhouse gases are a global problem not a local or regional problem. Moreover, the regulation of CO2 under other portions of the Act will likely follow. Perhaps the chaos likely to ensue from following this course will push Congress to pass legislation addressing greenhouse gases. But relying on Congress to do the sensible thing may well be an imprudent course.
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