This very moment, lawyers are arguing (or preparing to argue)
a raft of cases challenging the Environmental Protection Agency's rules on the regulation of carbon dioxide (CO2) and other greenhouse gases (GHG). In its scope and consequences, the EPA's climate change program exceeds even ObamaCare and Dodd-Frank: it threatens to engulf any firm, facility, and product that emits CO2 above minimal threshold amounts. However, the EPA's program in this case does not rest on a 2,000-page enactment by a temporarily deranged Congress, nor even on a unilateral bureaucratic power grab. Rather, it proceeds, with seeming and depressing inexorability, from a series of crabbed and tendentious judicial and administrative interpretations of a few stray provisions in the Clean Air Act (CAA)--a statute that long pre-dates the climate change crisis or obsession (take your pick) and, by uniform consensus, is designed to tackle local air pollution, not a global calamity.