Offer an educational series during the flight about climate change and what passengers can do to help.

Always include carbon offset in the tickets.

Award additional EuroBonus bonus and/or level points when renting an electric vehicle through a car rental partner such as Hertz, Avis or Sixt.

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.

Sometimes we don't need the cream and toothbrush; sometimes a pair of socks is sufficient. Being able to customize the amenity kits in advance reduces waste.

Implement the potential to offset carbon footprint by CDR technologies like enhanced rock weathering;