I scanned the story but hasn’t the push for celan air versus dirtier air in the 1970s caused a minor increase in warming. This is when clear skies lead to more sunlight hitting ground.
The real deal for me is the changes in solar radiation. The sun is far more powerful than CO2 levels.
Which is correct; and when sunlight hits ground, it converts to longwave IR radiation (heat), which is trapped by greenhouse gases.