Climate Economics is Richard Tol's new book, currently available in draft for review here (I wasn't able to read it online - I had to download via the file menu).
It's clearly an excellent tome, written by a discerning author:
Climate research is rather controversial. Good introductions to the controversy are Mike Hulme’s book Why we disagree about climate change: Understanding controversy, inaction, and opportunity, Donna Laframboise’ book The delinquent teenager who was mistaken for the world’s top climate expert and Andrew W. Montford’s book The hockey stick illusion: Climategate and the corruption of science.