Ed Dolan writes on the Econo Blog:
Last Week the White House released a long-anticipated Climate Action Plan. Conservatives have been swift to attack it as a “backdoor energy tax.” The critics could not be more wrong. A carbon tax, or energy tax of any kind, is the one big piece that is missing from the President’s plan.
Despite the criticism, though, some prominent conservatives see a better way of turning the issue of energy taxes to their advantage. Among those who support a carbon tax are Gregory Mankiw, Harvard professor and former Chairman of the President’s Council of Economic Advisers under George W. Bush; George P. Schultz, Treasury Secretary under Richard Nixon and Secretary of State under Ronald Regan; and David Frum, former special assistant to George W. Bush.
Greg Mankiw, George Schultz and David Frum aren’t so much conservative as they are Big Government Republicans.