From NoTricksZone

By Kenneth Richard

The longstanding claim is CO2 (greenhouse gas) top-of-atmosphere (TOA) forcing drives climate change. But it is too cold at the TOA for CO2 (or any greenhouse gas) to exist.

Image Sources: Schneider et al., 2020, NASA, UCAR, CGA

TOA greenhouse gas forcing is a fundamental tenet of the CO2-drives-climate-change belief system. And yet the “global-mean longwave radiative forcing of CO2 at TOA” (Schneider et al., 2020) may not even exist.

It is easily recognized that water vapor (greenhouse gas) forcing cannot occur above a certain temperature threshold because water freezes out the farther away from the surface’s warmth H2O goes.

According to NASA, the TOA is recognized as approximately 100 km above the surface. The temperature near that atmospheric height is about -90°C.

CO2 is in its solid (dry ice) form at -78°C and below.

Therefore, TOA CO2 radiative forcing cannot exist if CO2 cannot be a greenhouse gas at the TOA.