Weigh all passengers anonymously to optimize fuel load for best performance.

Meals included in the ticket fare are by default vegan (should be cheaper for SAS) and if meat dish is desired then it is a special order at an additional cost.

Let it be easy to take steps when buying bio-fuel.

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

Sell tickets without any luggage.

Voluntary fee of 5 cent/mile that goes to research and developement all electrical passenger airplanes. The aircompany gives another 5 cent per same miles.