True, but can we cut it 50%? Can we convert 20% to bicycles, or 10% to walking, or 5% to scooters, or all of the above?

I don't think we'll get rid of all personal transportation, or even all car usage, but it's highly variable from city to city, and I suspect we could convert some of the "worst" cities to be more like the "best".

We should also decarbonize private cars, but we should be pursuing battery of solutions.