I think the interesting thing which the statistic misses is that people are still choosing to light that stove with coal even though the PM it creates is damaging their health, because it’s the least worst option.

Outside PM is different because it can come from the factory down the road producing widgets for some other country, but the fact that inside PM contributes to nearly the same negative health impact, that is not a government intervention / negative externality! Starve with clean air or cook food for your family. This isn’t a fossil fuel problem, and isn’t something that can be switched out in any sense.

A makeshift stove can burn coal and cook a meal. You’ll never match that with any non-emitting technology because it will always require some investment where literally none is available.