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

Make flight space available for package distributors ex. DHL for a fee. Might save their flight and truck if packages can go with regular airplanes.

Make it possible to buy bio fuel for past trips.

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

By reducing the time planes spend with engines idling on the ground, we can decrease fuel consumption and emissions.

A smart sustainable mobility app to enhance trips to and from airports