It is: https://www.nationalobserver.com/2021/10/26/analysis/dirty-e... You can find many more sources with a search for yourself. The numbers only get better as we continue to increase the percentage of renewables on the grid. Gasoline cars will never get better.
> I'm just trying to understand why so much focus is on personal vehicles when emission comes mostly from other sources. I assume because it's easier to tell people they can't drive a certain kind of car than it is to tell an energy company they can't burn a certain kind of fuel.
There's plenty of work going into making the grid renewable. Passenger cars are basically #2 on the list, no reason not to start tackling it now, too.
https://yaleclimateconnections.org/2023/09/electric-vehicles...