Use more big size bottles and not small cans/bottles

Encourage food suppliers and distributors to use more sustainable and healthy packaging in the food that gets served.

Make a “code-share” cooperation with train providers, to allow for booking a ticket from A to B with combined train-plane modality and same benefits as connecting flight

Donate unused food and beverages after flights and try to get closer to zero food waste.

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

Use infrared heating to melt snow, ice, and frost without using chemicals