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.

Allow users to visualise their travel carbon footprint in-app. Include everything such as transportation to/from the home and destination, hotels.

The person that pays for most eco Fuel in a flight, should be awarded with free upgrade in form of free sas plus upgrade or free lounge access

Use modern IT to implement dynamic codesharing, providing an interline journey following an optimized flight plan, rather than a static agreement.

Reusable boarding cards for people without phones. Like the consius travelee bag tag.

Travel light = bring less than 8 kg. If you do so, you should be rewarded with points. If not, SAS will use the extra money you have to pay for sustainability investments.