I said I might compare the GISS and NOAA global surface temperatures by bringing them to a common baseline period, and I really thought I would be too lazy to do that, but low-and-behold I had already done this on my spreadsheets and forgotten.
Both datasets start in 1880, and the common baseline period I had calculated with is the 30-year period 1880-1909.
So with that the GISS anomaly for August 2020 is 1.08°C and the NOAA anomaly is 1.17°C.
People, we are in the range of 1.1°C of total global warming and quickly heading into the 1.2°C range. (And that's not even comparing to the true pre-industrial period, pre-1850 period, or maybe pre-1750, depending.)
Warming is stacking up fast. Easily 0.2°C/decade now. And accelerating.
GISS's 30-yr slope for the global surface temperature is now 0.23°C/decade. Ten years ago it was 0.18°C/decade; ten years before that, 0.17°C/decade. In July 1990, 0.14°C/decade. July 1880, 0.05°C/dec.
Should have put that in a table or graph, sorry.
But there's no doubt warming is accelerating. Someone tell Trump. I'm sure it will make all the difference to the scientific heathen, to the climate arsonist.