Even today's airline industry is unsustainable and can only continue to function because it's heavily subsidised. Fossil fuel for airplanes is tax-free and che

Even today's airline industry is unsustainable and can only continue to function because it's heavily subsidised. Fossil fuel for airplanes is tax-free and cheaper than petrol, e.g. $3.31/gal w/o taxes in California [0] vs. $2.06/gal (average) for jet fuel [1]. Using atmospheric carbon to generate fuel is significantly more expensive than that as even just capturing the CO² costs more than the crude oil used for jet fuel [2]. The claim of "carbon neutral fuel" basically rests on super optimistic assumptions already. The cost can only be competitive if a world-wide carbon tax on the order of $200/metric ton is implemented, which is very unrealistic. [0] https://www.energy.ca.gov/data-reports/energy-almanac/transportation-energy/estimated-gasoline-price-breakdown-and-margins https://www.energy.ca.gov/data-reports/energy-almanac/transp... [1] https://www.iata.org/en/publications/economics/fuel-monitor/ https://www.iata.org/en/publications/economics/fuel-monitor/ [2] https://www.nationalgeographic.com/science/article/carbon-engineering-liquid-fuel-carbon-capture-neutral-science https://www.nationalgeographic.com/science/article/carbon-en...