I do object to the deliberate fraud part. Not so mjp. I got it wrong re GISS
You are correct. I have checked and I find various images of both baseline periods shown. However images direct from GISS do show the 1951-80 baseline. other sites use the GISS chart but obviously they change it the generally accepted baseline period that most datasets are based on 1981-2010.
As Generic stated keep it standard as the WMO do.
I am wondering why or how I got that wrong. Obviously I was too quick of the mark.
I since put it down to NOAA using the 1981 -2010 baseline as a default is what has made me assume it to be the norm.
