International aviation represents around 1.5% of global anthropogenic CO2 emissions at approximately 450Mt annually. With the predicted doubling of the number of passengers by 2030, strong mitigation measures are required to limit the impact of international aviation on climate change.
The aviation industry, represented by the International Air Transport Association (IATA), has set ambitious goals: carbon-neutral growth from 2020 and emissions reduced to half of their 2005 level by 2050, or 320 million tonnes for global commercial aviation.
To fulfil this commitment, the sector needs to action several levers, including fuel and operational efficiency and global market-based measures, such as an emission trading scheme with an offset mechanism. The International Civil Aviation Organization (ICAO) is currently negotiating an agreement on the definition and scope of such a measure.
The session investigated the evolution of CO2 emissions from international aviation and analyse the measures considered by the industry and ICAO:
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