I think that irradience is difficult to pin to surface temps.  From the same article:<p>&gt; The current scientific consensus is that solar variations do not play a major role in driving global warming, since the measured magnitude of recent solar variation is much smaller than the forcing due to greenhouse gases. Also, solar activity in the 2010s was not higher than in the 1950s (see above), whereas global warming had risen markedly. Otherwise, the level of understanding of solar impacts on weather is low.<p>The last sentence and the section on hypothesized cycles basically state &quot;we&#x27;re not sure&quot; about what the sun is doing in the long term and what it&#x27;s effects on earth are.<p>That&#x27;s okay, I&#x27;m fine with not having answers on that while science and tech catches up with nature.<p>What I&#x27;m not fine with is drawing extraordinary conclusions from incomplete computer simulations about man&#x27;s role in climate given the primary sun and cosmic ray inputs into the system are not well understood.