Not Good News for global warming.
Not good news at all as roughly 90% of the global warming caused by jet aviation is from the direct greenhouse effect of contrails not from CO2 emissions, so any trick like this to label air travel as carbon neutral will still mean efforts to reduce air travel or come up with genuine alternatives are undermined.
The reality is that levels of fast air transport need to massively reduce with the bulk taken over by electric rail transport. Obviously slower electric airship transport can also be a useful addition, but our present expectations to dash off to wherever we want, or to have plastic crap from China delivered in a day or two will need to be reconsidered if there is to be any hope of maintaining the livability of large areas of the planet.
Biting the hand that feeds IT
