Global temperature change

From the Proceedings of the National Academy of Sciences:

http://www.pnas.org/cgi/reprint/103/39/14288 seven page PDF

I'm encouraged that Mr. Hansen believes in publishing in open access forums like the PNAS and the arXiv (see below). This is the only paper I've ever seen wherein the author refers to his Senate testimony. I should probably start posting his stuff on the Politics and Economics blog.