Sun+GHG=WaterVapor+CO2+... =1816+2°Celsius=2023 =>+1°Celsius/Century

When did global warming start in fact ?

Did it start 12 thousand 500 year ago ?

Did it start 207 years ago ?

The modern CarbonDioxide=CO2-peak is 73 year old.

With 425ppm=0,04% we are now 0,0125%=125ppm above the "historical" level in the 100% of air with 78% nitrogen and 21% oxygen.

• Water vapor is absorbing most of the downgoing solar radiation photons resulting in the warm summer noon atmospheric temperature TMax.
• Upgoing thermal radiation gives you the cool winter midnight atmospheric temperature TMin.

So ...

TMin goes up and down with upgoing earth back radiation greenhouse effect ?

TMax goes up with global specific humidity ?

So the climate is moving up in the enthalpy diagram.

Climate enthalpy indeed is rising faster over the past 25 years but cloudiness is going down although the absolute humidity is rising.

Atmosphere succeeds to absorb 2W/m2 extra over the past 20 year.

From the 1366W/m2 this 2W/m2 extra ...

But 2/1366=0,15% ...

Anyway :

In climate science there are too many unanswered questions and too many unquestioned answers ...

But : Health & Climate & Energy are really very complicated and delicate politico-scientific stuff and also socio-economic stuff but we do the best we can and try to explain it as simple as possible but not simpler than that in the group :

CCR="Climate Change Revival.