Revkin speculates that Barnes' proposal is a way to break the deadlock stopping climate change legislation. I think he may be right. Tax emissions. (Or cap them and auction permits.) Refund the revenue to everybody. It has the following political advantages: It is simple and easy to understand. It puts a price on emissions without really penalizing anybody. It is a no-hair-shirt solution. This last point is worth emphasizing. It does not punish consumers, be ...