My understanding is that planes burn the most fuel during takeoff and the least during cruising at constant speed. So for short trips where take off and landing are more important, then cars are less CO2 intensive. But I guess on trips longer than a few hours, planes come out ahead.MexiCanuck wrote: ↑ Reality is much more complicated that the above simple statement. In fact, the opposite is often true. The distance travelled, the number of passengers in a plane or car, type of car, etc. contribute to the calculations.
https://www.yaleclimateconnections.org/ ... s-driving/
Of course, driving with three or four passengers in a BEV would be far, far preferable.
But that's an irrelevant discussion, imho. Beyond a certain distance, land travel is just not practical.