Eliminate plastic bottles by installing onboard refill stations for reusable water bottles, encouraging passengers to bring their own bottles, and reducing plastic waste.

Develop solar-powered aircraft with energy storage systems to enable fully renewable, zero-emission long-haul flights within the next decade.

Long time ago SAS had a shared limousine service in Sweden. For a resonable price, a stretched Volvo picked you up, and a few more passengers.

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.

Mount small blades on the side of the wheels to make them spin by themselves before landing to reduce tyre wear upon contact with tarmac.

Free reebooking to earlier flight when avilable. Result in filling up seats, and making it more likely to fill up seats on later flights