Would a carbon tax effectively combat climate change?

A number of scholars, from the left and the right have floated versions of a carbon tax. Henry Paulson has also weighed in, favoring a tax. In theory, a uniform comprehensive carbon tax enforced among all major global emitters might have great advantages. Such a tax, if linked to a stringent accounting system, could be more transparent than any other approach to greenhouse gas control. In contrast to command-and-control schemes, a tax would target abatement resources to where they would be most cost-effective. A tax, unlike the 2009  cap-and-trade bill, would make it harder for proponents to falsely promise both… [more]