Which airline has the lowest carbon footprint? A data comparison
On a grams of CO₂ per passenger-kilometre (gCO₂e/pkm) basis, fuel-efficient carriers such as Alaska Airlines, KLM, and Japan Airlines consistently rank lower than sector averages, while legacy hub carriers with older fleets typically run 15–30% higher. The ICAO Carbon Emissions Calculator (ICEC) methodology places the global scheduled aviation average at approximately 90–95 gCO₂/pkm (CO₂ only, […]