here is a better explanation. historically temperature measurements were taken and recorded at remote locations that were not urban. within the last 50 years these areas have been urbanized and because of asphalt and concrete near the areas being measured the same measurements are showing an increase because of radiant heat in the immediate vicinity. get rid of all urban measurements from the model and there is no change in temp measurement average.
I love the real study of climate. Unfortunately, scientists that study climate don’t talk about this stuff openly out of fear that the universities they work at and other scientists that are getting grants on the premise that climate change is happening, Will have them fired.
“...within the last 50 years these areas have been urbanized.”
There was (is?) a website that had photos of the weather stations over the years showing what you described. A station out in a field is now surrounded by an expanded parking lot.
At our local zoo the weather station was out in the field behind the environmental studies building. They tore the old building down and put in a huge new eco-friendly showcase building. Now the weather station sits 10 feet from the huge air-conditioners sitting on crushed rock.