I still believe we need to be monitoring the ground temperatures. Air has a low thermal capacity.
Yep. The atmosphere doesn't tell us anything of lasting consequence. Go about 10-15 feet straight down into solid ground, in a lot of different places, and wait a good long time, and you'll start to see what's going on.
And where would you put those probes? In the center of Manhattan, in an Iwoa corn field, LAX parking lot, New Mexico desert, North Pole, South Pole? What’s the dispersion rate? How many samples should we take? What’s the budget? What will it ultimately mean besides still being just as relative to interpretation?