[mrpopo]

Electric cars are not a solution (most of the particles come from the brakes, tyres and too many roads instead of vegetation, which blocks wind dust and erosion).

Heat pumps or electric heating help solve climate change, not air pollution (it helps a bit if it replaces an old wood stove, but would make things worse if the grid is coal-powered, which is sadly still common).

Reversing aging isn't a thing and even if it were, it wouldn't be a solution to anything. Air pollution problems aren't only about physical health but mental health and biodiversity as well. Maybe I don't get the sarcasm.