Look, let's face it. Aviation is, as has been said above, going to be one of the most difficult industries to decarbonate. Frankly, I don't see how it can be done - short of banning the greater part of the industry from operating at all. What will be the result of such action ? 1. Hardly anyone flying 2.Most airlines out of business 3. Tens of millions out of work 4. Tens of thousands of very expensive a/c lying idle 5. A huge number of people unable to survive financially 6. Many finance companies, banks etc. unable to reclaim their investments in the industry 7. Other industries adversely affected financially, because their customers (formerly reliant on the aviation industry for their livelihood) are unable to afford their services/products 8. Governments unable to control civil unrest brought on by the aviation shutdown 9. A huge reduction -90%+ in global travel 10. Any other cataclysm you can think of,
But, relax, for these, & other reasons brought on by the practicalities of action for overcoming "Global Warming"; nothing meaningful will be done.
We will have to hope that the whole theory is incorrect - which may be a very vain hope - & carry on much as we did before !