There’s an old dude upwind from our house who still heats his home with coal.. probably the last in our village of 4000 people which has had mains gas since the 1990s.
It’s choking outside in the winter, just from this one fire. I’m thinking about offering to put in a heat pump for him and pick up his electricity bill, it’s that bad.
Imagine what it was like when everyone used to heat with it !
Keep in mind that both of these are in the valley surrounded by hills and mountains, forcing the smog to stay for days during colder weather with no rain or snow to disperse it.
Hey, at least you have only one such neighbor. Imagine how bad it is with a few thousand of them, burning sulfur-rich coal 10-11 months a year with a few plastic bottles and car tires thrown in for good measure. Wait, I don't have to imagine it, just take a look outside.