Pure nonsense. How were the temperatures measured? Where were they measured? What computer model/program was used to evaluate the data? Hogwash. Stop being told what to believe.
I’m with you. This was a movement, never science.
These are temps taken by satellite. Basically collections of spot readings by microwave and IR cameras, averaged in various ways, hence the several series available. But the various series seem to be in very close agreement.
The wiki on the subject is pretty good.
I don’t see any real issue with the satellite temperature record as such.
It has been, among other things, one of the major factors in keeping what sanity there is in the whole global warming fiasco.