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A comment on Will we ever fly supersonically over land?. Parent comment

Re:Will we ever fly supersonically over land? by Zababa on Saturday July 03, 2021 @10:17PM (#27726798)
> Flying on a full or almost-full plane is more carbon efficient than driving solo.

But how do they fare against trains, especially since trains can run on electricity? The mpg quoted in your article (21.6) also seems really low.

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Re:Will we ever fly supersonically over land? by istillwritecode on Saturday July 03, 2021 @11:29PM (#27727016)
Oddly light rail in silicon valley uses more BTUs per passenger-mile than cars do. Of course that is caused by the fact that light rail has so few passengers (and the number has been falling even pre-covid).
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