The thing is that there are multiple things that are problems and which can have independent(and even contradictory) solutions. Like for instance - cars cause n

The thing is that there are multiple things that are problems and which can have independent(and even contradictory) solutions. Like for instance - cars cause noise and pollution in cities where people live and breathe. Solution: give large incentives for people to buy EVs instead, so you solve the noise and pollution problems(not entirely, but in a large part). But obviously that does nothing to the lack of parking spaces, people using/not using public transit, cycling etc etc etc. It's just one of the sides of a very complex cube.