2021 ICAO Stocktaking on aviation in-sector CO₂ emissions reductions

ICAO Stocktaking Seminar on aviation in sector CO2 emissions reductions

31 August 2021 - 3 September 2021
Virtual/Online ,
Registration is closed


A series of annoncements were made at the ICAO Stocktaking 2021; find out more.

  1. oneworld outlines path to net zero emissions by 2050
  2. Foundation of the Institute for Sustainable Aviation (ISA)
  3. ICAO and the global youth 
  4. Germany Funding for PtL 
  5. IRENA new report: Reaching Zero with Renewables: Biojet Fuels
  6. Smartenergy partners with Sunfire on a lead PtL project in Iberia (Porto and Valencia)
  7. ​ISCC announces the first CORSIA certification of a refinery
  8. ​Air Liquide announces partnerships and initiatives on hydrogen for aviation
  9. ICAO and UNEP-FI announce future collaboration in sustainable aviation
  10. Air Canada announces the formation of a new SAF network in Canada
  11. ICAO announces the ICAO I4F Dialogues – 22 November 2021
  12. ICAO announces a new publication  - Action towards a green aviation transition

ICAO Stocktaking 2021

The 2021 ICAO Stocktaking is the most important global event of the year on the decarbonisation of the aviation sector.

Building on the 2020 ICAO Stocktaking event, which displayed over 100 innovative solutions to unlock current and future CO2 aviation emissions reduction potentials, along with strong commitments and ambitious roadmaps to zero emissions, the 2021 ICAO Stocktaking will provide a forum for the exchange and collection of information and data between all aviation stakeholders, covering the three areas for in-sector reductions: technologies, operations, and Sustainable Aviation Fuels.

During the four-day event aeronautical pioneers, industry leaders, technical experts, researchers, innovators, civil society advocates, and States, will illustrate their concrete and ambitious plans for decarbonizing international aviation. The event will conclude with a policy day, featuring high-level interventions to discuss the link between the post-pandemic green recovery and the future of sustainable aviation.

Contact us if you are interested to contribute to the Stocktaking process (fill in the online questionnaire, or email to stocktaking@icao.int). 

ICAO Pre-Stocktaking Webinars

From March to August 2021, a series of ICAO Pre-Stocktaking webinars paved the way to the 2021 Stocktaking. The presentations and videos of these events are available below.

  1. Battery technology, fueling Aviation Electrification (Tuesday, 16 March 2021 / 10h00-11h30 Montreal time)
  2. Hydrogen, getting to zero carbon flights (Thursday, 15 April 2021 / 10h00-11h30 Montreal time)
  3. Synthetic Fuels for Aviation (Thursday, 6 May 2021 - 10h00-11h30 Montreal time)
  4. e-VTOL and urban air mobility – A new systemic and sustainable approach for air travel (Friday, 4 June 2021 / 10h00-11h30 Montreal time)
  5. Infrastructure development for supplying clean energy for air travel (Tuesday, 27 July 2021 / 10h00-11h30 Montreal time)
  6. 2021 ICAO Stocktaking preview (Tuesday, 10 August 2021 / 9h00-11h00 Montreal time)

Click here to access the ICAO Pre-Stocktaking Webinars page.

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