Did Shakun et al. really prove that CO2 preceded late glacial warming? [Part 1]

By Don J. Easterbrook, PhD. In a paper “Global warming preceded by increasing carbon dioxide concentrations during the last deglaciation”, Shakun et al.(Nature 2012) contend that rising temperature at the end of the last Pleistocene glaciation were preceded by increasing atmospheric CO2. In his usual masterful fashion, Willis Eschenbach has dug deeply into the data…

About these ads

A couple of pertinent quotes

There’s a couple of quotes from Ernest Rutherford that I’ve kept in my head. Today seems like a good day to take them out of my head and put them to the WUWT readership. I’ll refer back to these at some point in the future I’m sure.

Roy Spencer’s ISH population adjusted discoveries

Readers recall that I carried a guest post from Dr. Roy Spencer on what he learned from analysing the CRUTem3 data: Spencer shows compelling evidence of UHI in CRUTem3 data. Now he has turned his attention to what I consider a better data set – the ISH data set, and comparing it to CRUTemp3 the…