For just over one hundred years, aviation has been bringing the world together, but it has also contributed to global climate change. The global aviation industry produces around 2% of all human-induced carbon dioxide emissions. If aviation were a country, it would rank 20th in the world in terms of gross domestic product, while it would place 6th in GHG emissions.
The United Nation’s International Civil Aviation Organization (ICAO) has implemented a basket of measures, including aircraft technology improvements, operational improvements, sustainable fuels, and market-based measures to attain carbon neutral growth from 2020 onwards.
ICAO’s market-based measure, Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA), requires that aircraft operators who emit more than 10,000 tonnes of CO2 from international flights begin to monitor, report, and verify their emissions as of 2019. Additionally, over three quarters of ICAO’s member states have committed to voluntarily offset CO2 emissions under the pilot phase of CORISA in 2021.
CORSIA requires that large aeroplane operators begin:
An aircraft operator has to monitor its fuel use and equivalent CO2 emissions from international flights in accordance with an eligible monitoring method.
CO2 emissions data provides the baseline to calculate emissions and annual offsetting requirements. Aircraft operators are required to report annual emissions to a state authority.
Verification on emissions reported aims to ensure the consistency of data and to identify any errors in the aircraft operator’s Annual Emissions Report. CORSIA requires an accredited third party to verify before reporting to the state authority.