The November global temperature as reported by the University of Alabama Huntsville (UAH) ***came in at an anomaly of +0.17C. The black dot on the chart is shown to be + 0.17C above the arbitrary fixed line. Recent monthly global temperature readings were
July +0.36 ; Aug. +0.28; Sept. +0.24 ; Oct. +0.32 ;
The measurements are the up and down lines, and the fixed line nominally has half of the temperature measurements above and half below the line. The two peaks, about 2017 and 2020 are the effect of El Ninos, naturally occurring phenomena. Not man-made.
Temperature has been declining since those two El Ninos. The opposite effect is a La Nina that usually occurs following an El Nino. Currently the global weather is experiencing a La Nina. La NInas typically result in drought conditions in the southwestern part of the US, for example.
Chart is courtesy of Dr. Roy Spencer.
While the chart is up there, following the very large El Nino that occurred in 1998/1999, the average temperature from then until about 2014/2015, did not rise. This 15/16-year period experienced continual rising of CO2 in the atmosphere. So, you can draw several conclusions as to why did it not rise? One is that there are natural forcing agents that were cooling the atmosphere. Two, is that maybe CO2 is not really what is theorized to be.
Detailed look at regions like North America, Southern Hemisphere, the Arctic, etc.by clicking here DrRoySpencer.PhD
***There are a number of organizations that chart global temperature. The best source is the UAH satellite data. It is the first that used satellites when it began in 1978/1979 and has continued to date. The satellite system measures the ocean temperature as well as the ground temperature. Others source temperature data from stations located around the globe. But these stations are concentrated in places that are inhabited and for the rest of the globe, they make estimations.
Confirming the accuracy of the UAH temperature measurements is that they match closely to the primarily land-based radiosonde (weather balloons) temperature measurements. The real temperature of the globe is contested. But the change in temperature from month to month is generally agreed to. You may have wondered why the Alarmist always speak about an anomaly increase in temperature of 1.5C., and not a specific temperature.