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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.



2 comments:

  1. None so blind that will not see.

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  2. Just looked at the JAXA sea ice extent graph here.

    https://moyhu.blogspot.com/p/latest-ice-and-temperature-data.html

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

    Second in the record behind 2012.

    ReplyDelete