.........It’s a well known fact that particulates in the atmosphere prevent some sunlight from hitting the earth, thereby reducing temperatures.
On the other hand, by those particulates blocking sunlight, the particles themselves would be warmed which would, in turn, warm the atmosphere. (While I haven’t seen any published data on this, I’d suspect that the two effects would offset each other, at least to some extent.)...................
However, remember the 1800’s yearless summer, after
Krakatoa (sp) blasted off, spewing billions of pounds of particulates in the air, creating a year of winter for the entire planet for 16 months.
Western mankind’s technology has greatly reduced the particulates in the air. I believe that this enables more sun energy to hit the surface, creating warmth.
Not carbon dioxide problems, as all the pre-historic to last century charts indicate that carbon dioxide builds in the atmosphere - after - an increase in surface temperature.
A cause and effect, not an effect and cause!
NASA GISS suggests aerosols play a large role in Arctic warming