Stop serving food/snacks/drinks on the shortest flights and instead implement grab and go lounges. Saves weight and can give customers greater choice.

Invite all travellers to bring their own coffee cup.

Require everyone to pre-order meals, snacks and drinks so that the plane can carry just the right amount of food and drinks.

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

Offer a ”Sustainable Comfort Kit” with eco-friendly amenities like reusable water bottles, organic snacks and bamboo sleep accessories

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.