Market based measures (CORSIA)

The Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) is a global market-based mechanism (MBM) for CO2 reduction.

CORSIA is based on the principle that those CO2 emissions which cannot be reduced through efficient aircraft technologies, operational improvements and sustainable aviation fuels can be offset using emission units from carbon markets. CORSIA provides a platform for accounting CO2 reduction in other sectors toward CO2 abatement from the aviation sector. CO2 emissions under CORSIA are measured from 2021 onwards and compared against a baseline, defined as an average of emissions from 2019. Initially, both 2019 and 2020 were considered the baseline average emissions; however the international aviation industry ar