ARTICLE: 'Climate Change Debate Hinges On Economics: Lawmakers Doubt Voters Would Fund Big Carbon Cuts,' By Steven Mufson, Washington Post, Sunday, July 15, 2007; Page A01

Article gives you a sense of the potential changes ad efforts/costs involved. Obviously, this is going to be a multi-generational affair, with biggest changes coming from leaders who are but kids today or not even born. So the question becomes, how do we get balls rolling, and the cap-and-trade seems like the best method to experiment.