This paper investigates the effectiveness of Carbon Emissions Trading Scheme (ETS) and Sustainable Aviation Fuels (SAFs) in reducing aircraft emissions on China-foreign routes, a rapidly growing sector. Using a modified BFFM2-FOA-FPM method and an Aviation FAIR-GWP concentration method, the study calculates actual emissions (CO2, CO, HC, NOx, SO2, PM2.5) and their carbon dioxide equivalent concentration (CDEC) until 2100. Results show SAFs are more effective than ETS alone, but combining both approaches yields the best emission reduction. The research provides suggestions for the aviation industry to mitigate its environmental impact.

Qiang Cui, Yi-lin Lei