Look, go ahead and increase fuel taxes. If you reduce car fuel consumption by just 1%, but this company succeeds and quintuples (!) the fuel consumption by piston engine planes, the environment still comes out ahead. Flying is a tiny environmental factor compared to driving.
[Avgas consumption in the US is about 200m gallons a year, car fuel consumption some 130,000m gallons. Car plus planes 130,200m. Car -1%, planes x5: 128,700 + 1000 = 129,700m gallons.]
> Flying is a tiny environmental factor compared to driving.
That's a common fallacy.
For example, i could say that the environmental impact of driving in my city is insignificant compared to the total. And that if you reduce emissions in others cities by just 1% in the rest of the world, but my citys emissions increase x5, the environment still come out ahead.
[Avgas consumption in the US is about 200m gallons a year, car fuel consumption some 130,000m gallons. Car plus planes 130,200m. Car -1%, planes x5: 128,700 + 1000 = 129,700m gallons.]