Decision parameters of an MRV scheme for integrating non-CO₂ aviation effects into EU ETS

Abstract

In addition to CO2, aviation affects the climate through other emissions and atmospheric processes, such as the formation of ozone and contrail cirrus. Although these non-CO2 effects account for about 2/3 of aviation's total climate impact, they have not been regulated in the past.This report summarizes the most important decision parameters that need to be considered by policy-makers for the implementation of a Monitoring, Reporting and Verification (MRV) framework for non-CO2 effects of aviation. Many of the considerations are also reflected in the MRV framework of the EU Emissions Trading System, which will enter into force on 1 January 2025.