But what if it worked?
Let's assume for a moment that the carbon tax worked, and everyone in the world paid it...
Then carbon emissions on the ground would fall. Demand for petroleum-based fuels would fall. The price of jet fuel may not rise as fast as it is otherwise going to (we are already at 'peak oil', fuel prices can only get worse from here).
Aviation is one carbon-burning sector that cannot easily (or even practically...) change fuel.
So Joyce's position could be seen as an attempt to hold fuel prices down, and avoid aviation having to switch to low-carbon (e.g. Amonia...) fuel.
Now let me ask a question: If an aircraft achieves its lowest "miles per gallon per seat" at take-off/climb-out, would not the carbon contribution per seat/mile of domestic aircraft be higher than that of long-haul?
Cheers