"I'm all for that but I don't fully understand..."
Thank you for affirming that. Sums up 99% of your postings.
sulfur, diesel fuel, NOx, ozone, sunlight, air, etcetera. Don't you have a car? Or maybe in swamp gardens they don't have smog tests. If you have had a car, and a smog test, you may have seen nox on there somewhere.
Prime example of hyper emotional personality hindering rational though. In this case his fixation on MMGW has kept him from considering other forms of air pollution.
He sees everything surrounding air quality as a CO2 issue.
It is curable if he gets some therapy.