I think there should be a progressive flight tax. The more flights you've taken, the more the next flight should be taxed.

That should allow anyone to do that once-in-a-lifetime trip to a far-away country they've always dreamed of, but discourage people from flying often.

A lot more fuel is needed during take-off and landing than during cruising, making the number and frequency of flights more significant than the distance.

COVID proved that not flying barely made a dent in the global emissions.

Sure, if we never fly again and reverted to living like a medieval peasant, maybe things will kinda work out.

My impression is that flying on a commercial plane produces less CO2 than driving? So if your only options are drive vs fly, I think flying is the correct choice -- is that right?

And eat vegan and regional produce

And don't build things out of concrete

And better get a few room mates

Flights represent 3% of CO2 emissions. It's nothing. A tiny drop in the bucket.