From the article and comments it sounds like Carlin is an economist, not a scientist. Is his report related to the science or is it an economic analysis of GW hysteria?
Now, that idiot Krugman is also an economist also - a far stretch from being a scientist.
Carlin has an undergraduate degree in physics from CalTech and a PhD in economics from MIT. His Web site lists papers about the environment and public policy dating back to 1964, spanning topics from pollution control to environmentally-responsible energy pricing. http://www.cbsnews.com/blogs/2009/06/26/politics/politicalhotsheet/entry5117890.shtml