Earlier this month I participated in a carbon tax panel discussion before lawmakers and legislative staff members at the Rayburn House Office Building on Capitol Hill. Since the GOP’s tax overhaul is on Washington’s agenda, I explained why a new carbon tax would be the opposite of the standard goals of pro-growth reform of the tax code. To illustrate my point, I used an analogy with the car market that seemed to resonate with the audience, so I’ll summarize my argument here for IER’s readers.