Environmental economics blog
I really don't get the debate by economists between a carbon tax and marketable carbon permits. At the first level, as economists, we've won! We've convinced nearly everyone that regulation using economic incentive-based policies is a preferred approach. The squabbling amongst us over the best economic incentive-based policy can't help get one of these policies implemented.
I understand the squabbling by others ... since there is a lot of money at stake.