This seems like an impossible claim to me. Surely it depends on many factors, off the top of my head:

- the occupancy of the trip

- the distance

- the number of stops

- the form of “last mile” transportation required

- the age and model of the vehicle

- the specific fuel source

I mean, I believe the statistic is true in aggregate. It’s like saying “vegan food has lower carbon emissions” which is true in aggregate. But wild game is often astronomically lower emissions (not to mention lower cruelty) than typical vegan food.

So these aggregate statistics are interesting points to ponder, but we don’t live in aggregate. We eat specific foods and we travel specific routes.

And at the individual level these statistics become... well not “mostly false” but certainly “frequently false”.

To me, the base statistic is a great starting point but the next questions we need to ask is: when are flights lower emission? When is hunting more humane? Etc. That’s how we can really drive better individual decisions. “Just ride the train and eat vegan” won’t get us to a globally sufficient decision framework.