The claimed global warming, from the 1850-1900 average temperature, to the 2010 to 2018 average temperature, has been arbitrarily revised to show more warming, from +0.91 degrees C., to +1.07 degrees C. global warming. ( It's hard to see the difference on the charts below -- repeated small "adjustments" , almost always creating more global warming, are what the climate alarmists call "settled science").
Note: Measurements made before 1920 are not even close to having global coverage, and hundredths of a degree C. are nonsense.
More global warming
created out of thin air:
