Why would I regard CO2 as a pollutant? It's an essential gas in our atmosphere.
It does need to be kept in balance though for the reasons we all understand, even if some of us pretend not to. Too much CO2 is bad for plants because although they grow faster and bigger they suffer losses to their integrity[quality] as a result.
Here's a way that extra CO2 is used to get pork on your fork. Enjoy!
https://animalsaustralia.org/features/not-so-humane-slaughter/
