You're right, it's basically air pollution. We know that air pollution makes people older and kills millions every year, although the exact mechanism is not known (I have lots of health problems because of it, but no good test to show it except bad sleep patterns at places with high air pollution).
We also know the solutions: electric cars (I just bought my first), heat pumps with electric heating, and reversing aging.
We also know the solutions: electric cars (I just bought my first), heat pumps with electric heating, and reversing aging.