Encouraging standardized suitcase measurements and/or using AI to plan and stack luggage for saving space and even out the plane in regards to weight.

Flying with free cargo space is a waste. I think SAS should start offering logistics companies air freight solutions. You can make money and save the earth - a win win.

Let the captain thank the x number of passenger on board that added bio-fuel on the ticket.

Serve only ecological wine/champagne including long-haul business class no exceptions, brand SAS as world's first 100% ecological wine airline.

Use more big size bottles and not small cans/bottles

Tell the story on-board in the IFE to attract more companies that want to get involved and contribute!