You haven’t proven anything. I’ve literally shown you and provided sources that show that airplanes are more fuel efficient than cars in our current use, have improved in efficiency by over 57% in the last 20 years, are less than 5% of the actual outputted emissions (including contrails), and that there are many, many other industries that would have a bigger impact in changing over airlines. It is 100% sustainable unless we make no other movement in any other emissions types.
You haven’t proven anything. I’ve literally shown you and provided sources that show that airplanes are more fuel efficient than cars in our current use, have improved in efficiency by over 57% in the last 20 years, are less than 5% of the actual outputted emissions (including contrails), and that there are many, many other industries that would have a bigger impact in changing over airlines. It is 100% sustainable unless we make no other movement in any other emissions types.