Open letter to ICAO parties on global market-based measure for aviation

A coalition of 64 organizations and European Parliament members calls on the International Civil Aviation Organization (ICAO) to implement a stringent global market-based mechanism (GMBM) for aviation emissions. The letter argues that aviation is a top ten global polluter and warns that emissions could grow by 300% by 2050 if left unaddressed. The signatories demand binding targets aligned with the 1.5°C Paris agreement goal, mandatory credit quality criteria to ensure environmental integrity, robust accounting to prevent double counting, and transparent decision-making processes.

• International aviation is identified as a top ten global polluter; in 2014, its CO2 emissions exceeded the combined emissions of the 129 lowest emitting countries and contributed to approximately 4.9% of global warming.
• Without intervention, aviation emissions are projected to increase by up to 300% by 2050, which would breach the global carbon budget and jeopardize the Paris agreement target of limiting warming to 1.5°C.
• The signatories argue that the global market-based mechanism (GMBM) for 'carbon neutral growth 2020' must be a binding first step with increasing ambition and that any exemptions for poorer countries or new entrants must be offset by higher reductions from non-exempt participants.
• To ensure environmental integrity, the letter calls for mandatory credit quality criteria for offset credits and the creation of a 'negative list' to ban projects with known negative social or environmental impacts, such as fossil fuel or large hydro projects.
• The coalition demands the implementation of robust accounting and Monitoring, Reporting, and Verification (MRV) to prevent double counting of credits and ensure consistency with UNFCCC actions.

APA

Delli, K., Eickhout, B., Jadot, Y., & Taylor, K. (2016). Open letter to ICAO parties on global market-based measure for aviation. Carbon Market Watch. https://carbonmarketwatch.org/publications/open-letter-icao-parties-global-market-based-measure-aviation/

Chicago

Delli, Karima, Bas Eickhout, Yannick Jadot, and Keith Taylor. Open letter to ICAO parties on global market-based measure for aviation. Carbon Market Watch, 2016. https://carbonmarketwatch.org/publications/open-letter-icao-parties-global-market-based-measure-aviation/.

Wikipedia

{{cite press release |last1=Delli |first1=Karima |last2=Eickhout |first2=Bas |last3=Jadot |first3=Yannick |last4=Taylor |first4=Keith |title=Open letter to ICAO parties on global market-based measure for aviation |publisher=Carbon Market Watch |date=10 May 2016 |url=https://carbonmarketwatch.org/publications/open-letter-icao-parties-global-market-based-measure-aviation/ |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@misc{delli2016open, author = {Delli, Karima and Eickhout, Bas and Jadot, Yannick and Taylor, Keith}, title = {{Open letter to ICAO parties on global market-based measure for aviation}}, publisher = {Carbon Market Watch}, year = {2016}, month = may, url = {https://carbonmarketwatch.org/publications/open-letter-icao-parties-global-market-based-measure-aviation/}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }