CO2 Cools Damp Air

E.M.Smith
"The bottom line is that adding a bit of CO2 to some damp air makes the whole works cooler, not warmer. ........Sun takes a break and UV plunges.
Lower UV means a colder mesosphere and thermosphere, and lower ozone in the Stratosphere.
Lower Ozone means the 11 micron IR window “opens”.
Stratosphere cools as well (and the whole upper atmosphere gets more compressed) so heat transport will be more effective.
Troposphere convects a bit more rapidly (the “gustier” and “blustery” quality I’ve noted) and we have a net large increase in heat flow out, or cooling.

CO2 cools damp air. CO2 cools the stratosphere. The sun cools the stratosphere, mesosphere, and troposphere when the UV level drops (and warms them when UV rises…)

All observable and testable / measurable (or already observed in most cases).

The Sun “did it”: