Earlier quoted context omitted.
If you want to reduce air travel for environmental reasons, then tax it more. Shaming individuals doesn't seem to be productive or helpful. Air travel works for people if the benefits outweigh the costs. The only thing that changes behavior is to change the costs. And even if costs were 10x there are still plenty of people who will fly tons, because it would still be economically productive. There are always going to…
I think a broad tax would just make it more difficult for middle and lower class to fly. Tax the business/first class and frequent flier, but don't push people who can already barely afford to fly out.
That said there are probably some work-arounds, tax free twice a year, tax rebate or some-such.