Climate Activists Change the Temperature Data – Again – to Fit Alarmist Narrative
By
Anthony Watts -
February 23, 2021 0
Much of the observed warming this past century is artificial, either caused by the urban heat island effect or by dubious adjustments to the actual data reported by surface temperature stations. Christopher Monckton has just uncovered the latest example of temperatures gatekeepers adjusting the data to fit an alarmist narrative. Monckton writes:
They’re at it again. The old lady of temperature datasets – HadCRUT, the only global dataset to reach back to 1850 – has released its revised monthly global mean surface temperature anomalies for 1850-2020. The earlier dataset (HadCRUT4) showed a least-squares linear-regression trend of 0.91 K on the monthly anomalies from 1850-2020 – only just over half a degree per century equivalent.
HadCRUT5 shows a 1.04° C trend from 1850-2020, or three-fifths of a degree per century equivalent, up 14% from the 0.91° C trend on the HadCRUT4 data:
https://climaterealism.com/2021/02/climate-activists-change-the-temperature-data-again-to-fit-alarmist-narrative/
