HADCRUT Global Temperature Anomaly (part 1)
A quick squizz at the latest data with a side order of cogitation.
The HADCRUT global temperature anomaly combines the CRUTEM5 land surface air temperature and HADSST4 sea surface temperature anomaly data series in order to get some idea of what the world is doing. Details on this stalwart effort by us Brits may be found here. NOAA does similar, as does Berkeley (BEST), ECMWF (ERA5) and NASA (GISS). The work involved i…