Ahhh so that's how that reads. I definitely wasn't picturing gas stoves huddled around smokers, huffing benzene and taking deep breaths of 2nd hand smoke.
It'd be interesting/slightly frightening to see the impacts of natural gas burning for heat in this same vein, as it's the primary heating method for houses in the very cold Canadian prairies.
Really is an interesting way to look at things. If you look at humans as an ‘organism’, it could be trivial to make massive shifts in output with relatively small changes in behavior. How to go about that might be unknown, but it doesn’t have to happen all at once or in one place. The fact that taking literally an extra minute of the day to deal with waste would double the amount of time we currently spend on it (at least roughly), shows what a huge impact just looking at this data in this way could have.