Both would be good, one does not need to exclude the other. Neither is going to be enough on its own though. More EV availability would overall reduce carbon footprint, but more can be reduced by increasing biking availability and encouraging it more where possible.
I can say from experience though that the $40+/hr parking in some areas of SF make me never want to drive there again though. BART does help though, since you can get around SF pretty well on public transit alone. Other cities in the area also benefit from BART, but not as much, and could generally have better public transportation (busses and such).
Both would be good, one does not need to exclude the other. Neither is going to be enough on its own though. More EV availability would overall reduce carbon footprint, but more can be reduced by increasing biking availability and encouraging it more where possible.
I can say from experience though that the $40+/hr parking in some areas of SF make me never want to drive there again though. BART does help though, since you can get around SF pretty well on public transit alone. Other cities in the area also benefit from BART, but not as much, and could generally have better public transportation (busses and such).