Expand conscious traveler so that every 10 steps gives 5000 level and bonus points. Not only once a year. This will engage more people to engage in the program.

Present sustainability data for the flight in the infotainment system, with for instance bio-fuel stats, # meals pre-selected and how much carbon emissions was saved.

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

Nuclear fuel last for much longer than fossil, and a plane can fly as long as it,s food for, so around the world in one flight.

It's also good for noise pollution

Be awarded with points or higher status level when choosing a more eco friendly flight ticket

Compensate Eurobonus members CO2 emissions as before