Eliminate plastic bottles by installing onboard refill stations for reusable water bottles, encouraging passengers to bring their own bottles, and reducing plastic waste.

Make a “code-share” cooperation with train providers, to allow for booking a ticket from A to B with combined train-plane modality and same benefits as connecting flight

Free coffee only for those who have reusable cups with them. Fee for paper cup or no paper cups at all.

Help handlers submit more precise Target-Off-Block-Times for better CTOTs, to save fuel spent on ground waiting.

And give more SAS bonus points to travelers who book with biofuel. Incentives!

Change the paper dispensers in the lavatories, often many tissues come at a time. Get single tissue dispensers. Save paper and avoid overfilled bins that looks untidy.