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Noise from Emerging Technology Aircraft
New innovative technologies and energy sources for aviation are under development in a fast pace, and ICAO is closely following up these developments to prepare for their timely environmental…
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Local Air Quality
One of ICAO's environmental goals is to limit or reduce the impact of aviation emissions on local air quality (LAQ). Starting during the late 1970s, ICAO has been developing measures to address…
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Trends in Local Air Quality
Page ContentAs part of the CAEP/13 (2025) update to the ICAO Global Environmental Trends, a range of scenarios were developed for the assessment of future aircraft emissions affecting LAQ, i.e.…
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Trends in Local Air Quality
Page ContentAs part of the CAEP/12 (2022) update to the ICAO Global Environmental Trends, a range of scenarios were developed for the assessment of future LAQ NOx and PM emission trends.The LAQ…
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Local Air Quality Technology Goals
Page ContentTo foster technology development, ICAO regularly sets technology goals, with the purpose of providing stretch yet reasonable targets for industry R&D to aim at, in cooperation with…
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Local Air Quality Technology Standards
Page ContentICAO Technology Standards on LAQ are reflected in Annex 16, Volume II – Engine Emissions. They address liquid fuel venting, non-volatile Particulate Matter (nvPM) impacts from mass and…
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Guidance on Airport Air Quality
Page ContentICAO recognizes that airport-related sources of emissions have the ability to emit pollutants that can contribute to the degradation of air quality of their nearby communities. As such,…
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Guidance on Airport Air Quality
Page ContentICAO recognizes that airport-related sources of emissions have the ability to emit pollutants that can contribute to the degradation of air quality of their nearby communities. As such,…
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Climate Change
With a view to minimize the adverse effects of international civil aviation on the global climate, ICAO formulates policies, develops and updates Standards and Recommended Practices (SARPs) on…
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Long term global aspirational goal (LTAG) for international aviation
Page ContentThe 41st ICAO Assembly adopted a long-term global aspirational goal (LTAG) for international aviation of net-zero carbon emissions by 2050 in support of the UNFCCC Paris Agreement's…