Look, I know I am not winning any popularity contest -- but, a couple of points.
1) the original article was bs. You can't demonstrate the temperature is rising by looking at record temps in some "hot" cities. The very definition of a biased convenience sample. That is the reason I brought up the state highs, which look at "all" temperatures.
2) The fact that most (26) states have their record temperatures set in the 30's should give some pause to the whole "unprecedented" record temperature narrative. I guess that "record temperatures (if we don't look back before the 1940's)" isn't quite as powerful?
3) my fields are NOT climate-related. But it seems solar iridescence (as you cited in your reference) may not be as strong an argument as you think it does...
"While both are related to solar activity, "solar iridescence" refers to a visual phenomenon created by the diffraction of sunlight through clouds, appearing as rainbow-like colors, while "sunspot activity" refers to the number and intensity of dark areas on the Sun's surface, which are directly linked to the Sun's magnetic field and indicate changes in solar radiation output, following an approximately 11-year cycle; essentially, solar iridescence is a visual effect on Earth due to sunlight interaction with the atmosphere, while sunspot activity is a measure of the Sun's own magnetic field". My reading of this is that sunspots are better correlated with solar output than iridescence. But, again, not my field.
4) I have no problem with the idea that rising CO2 can have an effect on global temps.