[ars]

> 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.

[commanda]

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

[ars]

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.