Encouraging standardized suitcase measurements and/or using AI to plan and stack luggage for saving space and even out the plane in regards to weight.

Travelers register final destination, SAS sends taxi sharing offers via SAS transfer = lower taxi costs and individual receipts for passengers.

Flying with free cargo space is a waste. I think SAS should start offering logistics companies air freight solutions. You can make money and save the earth - a win win.

When going from A to D some times you need to transit in B and even C. Price match the most eco-friendly with the cheapest alternative in points.

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

Donate unused food and beverages after flights and try to get closer to zero food waste.