MEGAN MCARDLE: “We seem to have a grand national amnesia when it comes to carbon and flying. Cap and trade isn’t going to do any good unless we do less of things like drive and fly–and most of the city loving coastal types I know want to do much, much more flying, because international travel is incredibly important to them. Yet a few long haul flights a year are the carbon equivalent of driving an SUV in an exurb.” Yes, a ten-cent-per-mile carbon tax would do a lot to reduce emissions. And then there’s a ban on private jets, and a requirement that members of Congress fly commercial, not military, transport except when visiting war zones and the like . . . .