However the atmospheric heights are changed far far more substantially by top down solar effects and bottom
up oceanic effects.
The irregularity of the temperature changes within those main background trends can not have been anything to do with humanity and can adequately be catered for by varying
oceanic effects on multidecadal time scales.
So jet stream positioning and consequent changes in solar input to the oceans could swing the ENSO phenomenon in favour of dominant El Nino or dominant La Nina subject additionally to possible modulation from
internal oceanic effects.
One can only hope we are wise enough to fix it before
the oceanic effect starts reaching diminishing returns.
The mechanism by which
the oceanic effect is transferred to the atmosphere involves evaporation, convection, clouds and rainfall the significance of which has to date been almost entirely ignored due to the absence of any relevant figures.
In any event what significance can calculations limited to the atmospheric effect have in the real world where
the oceanic effect is so much greater?
If one accepts that
the oceanic effect could produce an average multiplier of 5 times up or 5 times down then there you have a solar contribution of only 10 % as adequate to explain all observed changes without involving CO2.