Testing of a monitoring and reporting scheme for integrating non-CO₂ aviation effects into EU ETS

In addition to CO₂, aviation affects the climate through other emissions and atmospheric processes, such as the formation of ozone and contrail cirrus. These non-CO₂ effects account for about 2/3 of aviation's total climate impact but can vary widely from flight to flight. In order to target mitigation measures, it is therefore essential to calculate the climate impact at the level of individual flights.

This project took the perspective of an airline and tested the necessary steps to monitor and process the data and determine the resulting climate impact based on about 400 flights. This work has laid the basis for the integration of a Monitoring, Reporting and Verification framework into the European Emissions Trading System.