Saying there’s an “average” temperature of the earth is like saying that your house has an average color of paint over the years. When did this averaging of temperatures begin? What a pant load.
Lack of sunspots = mini ice age.
One might note that the average temperature at ground level is significantly different than the average temperature 20,000 above that spot.
Just exactly where do they stick that giant rectal probe ?
The Earth’s climate goes through changes where the EXTREMES are higher. The end result is that the average stays the same.
Most claims of the ‘average’ getting higher or lower (in recent times) are based more on the location of the measuring equipment than anything else.