The HadCRUT4 surface temperature index produced by the,
a. Hadley Centre of the UK Met Office and the,
b. Climate Research Unit of the University of East Anglia show the following trends
1878 to 1911…………….cooling
1912 to 1941…………….warming
1942 to 1964…………….cooling
1965 to 1998……………..warming
1999 to 2011………………cooling
Warming rate from 1908 to 1938………0.13°C per decade
Warming rate from 1983 to 2013………0.17°C per decade
Satellite data shows 2002 to mid 2015………..cooling
Warming pause ends late 2015 with El Nino event starting late 2015
The UAH analysis of satellite data gives a warming trend from 1979 to 2020 of 0.14°C per decade
The IPCC global circulations models (computer models) predicted a warming trend of 0.27°C per decade
That’s just under twice the warming we have experienced in the real world by observations of nature the last 40 years.https://friendsofscience.org/index.php?id=3