I’m enjoying Iain and Ken’s back-and-forth on the disparate geographical impacts of a “revenue-neutral” carbon tax. But that geographical discrimination is already in force in enviro-minded legislation now on the books: the coastal Congressional leadership of Pelosi/Markey scapegoated the Midwest’s auto industry as the cause of global warming in their recent energy bill. Our industries are now struggling with the expensive ramifications of boosting auto MPG by 40 percent by 2018.