Why do policy makers focus on car emmissions and not (seemingly) much more impactful factors like trucking and commute by car?

Question

Why do policy makers focus on car emmissions and not (seemingly) much more impactful factors like trucking and commute by car?

In: 1

Answer 1

In America at least, it’s nearly impossible for there to be good, useful public transportation because it’s so damn big and the people are so spread out. Cars are a necessity for a lot of Americans.