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> of CO2 emissions fallout

The what? Did you typo? If you didn't, then the article did not address it because there is no such thing.

Ok, sorry, I meant carbon particulate (soot), not CO2.

There's probably less soot now than there was in the past.

Wood fires (campfires, stoves, hearths, etc) make a TON of soon. Modern burning techniques are much better.

So if it didn't do anything in the past, it's certainly not doing anything now.