Incentivize sustainable behavior, e.g. a small reward for bringing your own coffee cup. This can also be sold by SAS in the Eurobonus store or in flight.

Mount small blades on the side of the wheels to make them spin by themselves before landing to reduce tyre wear upon contact with tarmac.

For every mile the aircraft flies overseas, SAS commits to a certain amount of plastic being removed from that ocean.

Keep a updated and modern fleet of aircrafts.

Bagtag with permanent barcode/QR and NFC. No more waste from printing pagtags. Alternativly E-Paper to solve randomizing of codes

Stand up seats for shorter flights.