Separate the salt and pepper from the rest of the table set. Way too often it's just thrown away.

Make flight space available for package distributors ex. DHL for a fee. Might save their flight and truck if packages can go with regular airplanes.

Option to make a plant a tree donation. By having a partnership with a existing tree planting project.

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

Do NOT introduce business class with free middle Seat instead of SAS plus service. This is a mile step backwards as planes take fewer passengers.

If biofuel could be bought/added with points, people could spend their "soon-to-be-expired" points on biofuel rather than something unsustainable.