If you reduce the allowed weight for luggage from 23 kg to 15 kg or so, people might start to think if they really need all that stuff with them.
Bagtag with permanent barcode/QR and NFC. No more waste from printing pagtags. Alternativly E-Paper to solve randomizing of codes
Make it possible to buy the Conscious Traveler Bag tags for all Eurobonus members
“Coffee deal” – Sell well designed coffee cups with free coffee for a year. Less waste and collectible item for pax!
Offer an educational series during the flight about climate change and what passengers can do to help.
Give more Eurobonus point to sustainable destinations, by ranking airports and/or destination
More efficient and simple airports generates lower airport taxes. Upside, overall cost WITH Biofuel ticketing acceptable.
Abolish Plus and have just one class on domestic flights like back in the day. Use free placements onboard.
Redesign eurobonus to demand responsible travel. New tier with exceptional benefits: upgrade vouchers, complimentary upgrades, extra award flight access etc.
