There are better examples of the consensus being wrong. Alexander Gordon's, Oliver Holmes's, and Semmelweiss's work reguarding puerperal fever. Joseph Goldberger and the "pellagra germ." Alfred Wegener and continental drift. Jenner and smallpox. Pasteur and germ theory.
On the climate side of things Mann's work is critical to quite a bit of your argument, Epsilon, being refrenced in such things as the IPCC's fourth report and its validity has been called into question. McIntyre says it's worthless. Wahl and Ammann say it's worthless without bristlecones. The NAS panel say that strip-bark sites (which include all the relevant bristlecones) should be avoided in temperature reconstructions for a variety of reasons.
On the climate side of things Mann's work is critical to quite a bit of your argument, Epsilon, being refrenced in such things as the IPCC's fourth report and its validity has been called into question. McIntyre says it's worthless. Wahl and Ammann say it's worthless without bristlecones. The NAS panel say that strip-bark sites (which include all the relevant bristlecones) should be avoided in temperature reconstructions for a variety of reasons.