Ideas

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

I would use my skills in optimization and deep learning to learn what frequenzies and time schedules that maximizes the load factor of each aircraft in the fleet.

Make more out of every trip – it's not all about reducing the emissions but making every trip worth it. Sustainable travel is when the trips you make are worth it.

Include a minimum of 50% bio-fuel for all SAS Business seats. Market it as a part of business being reintroduced in Europe. A win-win, for both customers and airline.

Granting a number of KG per year per passenger for onboard / checked-in luggage

Allow users to visualise their travel carbon footprint in-app. Include everything such as transportation to/from the home and destination, hotels.

Allow lounge guests to opt-out of onboard service and bring their meal and drink to the aircraft

Include 1 free unit of biofuel per booked flight, for passengers that have reached Conscious Traveller status.

In Scandi all tap water is great. Sell SAS water bottles onboard which are made to be reused = able to buy for points, pre-order as well. And then load tap water onboard.

Travel light = bring less than 8 kg. If you do so, you should be rewarded with points. If not, SAS will use the extra money you have to pay for sustainability investments.