Sounds like someone who’s been fed a line and has believed it. A) why do you think car companies started to need to develop more modern emission systems to beg

Sounds like someone who’s been fed a line and has believed it. A) why do you think car companies started to need to develop more modern emission systems to begin with? That’s right - California, a huge car market, started creating and enforcing standards through the introduction of CARB. Prior to this car companies had no incentives and weren’t doing this B) there’s more to smog than just cars. CARB tackled emissions across multiple industries. C) average cars last too long. The reason cars modernized was because CARB made owning and operating older vehicles impractical/impossible. D) population and vehicle miles driven kept growing so per unit emissions need to shrink faster than that growth and it did. Thanks to CARB. Is ethanol the primary reason we don’t have smog now? No, but the problem was so bad that CARB took a comprehensive approach at tackling the problem on many angles. And importantly they succeeded. It’s quite a silly position to take that “this problem would have solved itself”. It’s the twin to the fatalism position of “this problem is too big and complicated to solve”