There's a very interesting article at the Institute for Energy Research website, looking at Nordhaus's recent critique of the 16 optimistic scientists.
Although leading climate economist William Nordhaus tries to cast himself as the messenger of objective science, his attempt to rebut the “global warming skeptics” is itself filled with misleading arguments. The actual situation is that the physical climate models have indeed predicted more warming than has actually occurred, while the economics literature casts serious doubts on the case for immediate government mitigation efforts.
I particularly enjoyed reading about Tol's review of the economics literature on the effects of AGW. That net benefits are enjoyed for warming of less than two degrees struck me as an important, and little appreciated idea.