They must know that even if they've made the hydrocarbon artificially by combining hydrogen (mythically extracted from water, using mythically available spare green electricity) with carbon (which they will mythically extract from carbon dioxide)
🐦🔗: https://n.respublicae.eu/catherinerowett/status/1614259912523059201
They must know that if they burn that mythically produced hydrocarbon at high altitude it'll still have the devastatingly damaging effect on the climate that currently results from burning aviation fuel at high altitudes.
That is... It's not sustainable, even in the fairy story.
🐦🔗: https://n.respublicae.eu/catherinerowett/status/1614259920555372545
... That carbon dioxide being, in their imagination, eventually drawn from the air though they know they can't do that right now...
🐦🔗: https://n.respublicae.eu/catherinerowett/status/1614259916704817153