Introduce a "minimal comfort" seating class with basic amenities and reduced seat recline, allowing more passengers per flight and lowering per-person emissions.

Stop tankering on flights, lighter aircraft less fuel burnt and on shorter flights possibility to save deicing.

Let it be easy to take steps when buying bio-fuel.

Do not introduce Business class on intra-european flights. Plus is fair enough and very valuable for short flights and have a human price (like Norwegian and Ryanair).

Have a separate bin to put old baggage tags and recycle them. Not together with ordinary waste.

Make visible in the app how many people are flying on green fuel on booked flights, to encourage other people to do.