Actually, that’s highly disputed. And the leading theorist on this, Henrik Svensmark of the Danish National Space Institute, says that solar emissions during high solar activity seed cloud formation and cool the planet, and that during a quiet sun there are less clouds so it’s hotter.
But, like I said, the data is marginal at best and it’s a controversial claim.
Nope - I remembered that wrong - Svensmark doesn’t say the sun droves cloud seeding - he says cosmic rays do - and when the sun is active it blocks cosmic rays - so the effect is the opposite of what I said and in line with what you said.
But we really didn’t see cooling through the last two minimums. Hoping we’ll see it this time!
This seems counter intuitive.
The primary green house gas is water vapor.
Also, the coldest days in my experience are days with clear blue skies.
By the way this is new to me.
https://phys.org/news/2011-05-role-bacteria-weather-events.html