Use travellers feces from flights as a bioproduct. As fuel or to something else useful.

Instead of serving main meals on the flight briefly after takeoff, service the meal in the boarding area. Save load, effort and waste.

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

Using hydrogen tanks in the rear of the plane, for example. This could work on shorter routes such as domestic flights or intra-Europe.

Give more options to buy Sustainable Aviation Fuel in booking process for members to gain more EuroBonus points.

Not handing out napkins under every drink.