by Judith Curry
On the previous sea surface temperature thread, I stated “Do you for one minute believe that the uncertainty in global average sea surface temperature in the 19th century is 0.3C? I sure as heck don’t.” Sharper00 challenged me to further support this statement, which provides the motivation for this thread along with the recent release of the latest version of the Hadley Centre SST dataset (HADSST3).
