Grist: Its not every day that a Republican finance guy one who remembers George W. Bush as a terrific boss writes an op-ed in the New York Times imploring the nation to set up a carbon tax. Not this year, anyway; just a few years ago, it mightve been ho-hum. Once, the carbon tax was the conservative, free-market solution to the climate problem, as opposed to the big-government, heavy-handed-regulation solution. Now that so many Republicans dont accept that there is any climate problem at all,...