Tuesday, September 15, 2020

Comparing GISS and NOAA for August Temperatures

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.


Entropic man said...

None so blind that will not see.

Entropic man said...

Just looked at the JAXA sea ice extent graph here.


Shows that we've just passed minimum extent at about 3.2 million km^2.

Second in the record behind 2012.