Economies of scale exist; urban dwellers generally pollute less on a per-capita and on a consumptive basis. And your whataboutism is misplaced--air pollution in

Economies of scale exist; urban dwellers generally pollute less on a per-capita and on a consumptive basis. And your whataboutism is misplaced--air pollution in cities has been improving steadily since the 1970's. (The Trump Administration is rolling back regulations related to this, which is fun, but that has likely not had significant impact yet.)