Scrapping a working gas car for mass transit is even greener.

Street cars or trolleys would be even better

Interesting

This is wrong mathematically and I can prove it. Bob has a gas car. Bob is bed ridden and never drives anywhere. 0 miles a year = 0 emissions. So there exists a threshold of miles driven per year below which it's greener to keep the gas car. QED.

"Usually". The case when they say it's not:

> The study finds annual mileage thresholds below which the replacement EV’s manufacturing emissions are not recovered: about 7,054 kilometers for cars, 6,837 kilometers for SUVs and 10,794 kilometers for trucks. Those are well below the roughly 20,000 kilometers in the researchers’ average case, but very lightly driven vehicles clearly exist and can be better left in service.

("Kilometerage threshold"? Anyway, for those using miles, that's 4383 mi for cars, 4248 mi for SUVs, and 6706 mi for trucks.)

Still, I like my old ICE car partly because it's from the offline vehicle era and completely lacks any kind of remote telemetry. Perhaps if I didn't have to choose between EVs and lack of telemetry, I might be more inclined to upgrade sooner. (That, plus it's still nice to be able to just completely refuel in a couple of minutes on long road trips through areas where services are very sparse.)

> 7,054 kilometers for cars > for those using miles, that's 4383 mi

Per annum -- from article:

  Those are annual mileage thresholds