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Aircraft play a vital role in our modern economy by quickly and conveniently transporting goods and people. But they also exact environmental costs. If counted as a country, globally the aviation sector would rank 7th in terms of carbon dioxide (CO2) emissions, just after Germany and well above Korea in 2011. Projections are that CO2 emissions from aviation will triple by 2050 under business-as-usual scenarios, as more people and goods move by air, unless effective policies are developed to constrain emissions growth. Nitrogen oxide (NOx), particulate matter (PM), noise, and lead pollution also impact often disadvantaged communities living near airports.

A number of governments and international organizations are working to manage the environmental impact of the aviation industry. The International Civil Aviation Organization (ICAO), a specialized UN agency, oversees and acts as the de facto regulator of airlines and aerospace manufacturers worldwide. ICAO adopted its first aircraft noise standard in 1972 and its first engine certification standards for air pollutants in 1981. Since then, ICAO has periodically tightened both policies, and is currently developing the world’s first CO2 and PM emission standards for new aircraft and engines, respectively.

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Alternative jet fuel development and deployment in North America
Evaluates the trajectory of GHG emissions from international aviation in the U.S. and Canada as well as the possible GHG reductions that could be made from deployment of alternative jet fuels (AJFs) within the framework of the...
Briefing
Mitigating international aviation emissions: Risks and opportunities for alternative jet fuels
Evaluates the potential for alternative jet fuels (AJFs) to decarbonize the aviation sector and the risks associated with those fuels’ sustainability, costs and barriers to commercialization. 
White paper
International Civil Aviation Organization’s Carbon Offset and Reduction Scheme for International Aviation (CORSIA)
Describes the details of the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA), the International Civil Aviation Organization’s market-based measure to offset most of the growth in aviation carbon...
Policy update
 

From the ICCT Blogs

Maximizing aircraft fuel efficiency: Don’t skimp on R&D
An interview with Dr. Fay Collier, Associate Director for Flight Strategy, Integrated Aviation Systems Program at NASA Aeronautics and a former Project Manager at NASA Environmentally Responsible Aviation (ERA), on NASA’s contribution to technologies already in use on aircraft flying now, the ERA project, and a new NASA initiative to demonstrate these environmentally responsible aviation technologies. 
Staff Blog
New energy efficiency target for cars could help Brazil compete in international markets
Aligning Brazil's new-car efficiency target with the European Union’s target would have substantial benefits for consumers. Compared to a car meeting Inovar-Auto's 2017 target, the average new car sold in 2023 could reduce fuel costs more than 4,000 USD over the lifetime of the vehicle, equivalent to 2.4 times the cost of additional vehicle technology.
Staff Blog
Maximizing aircraft fuel efficiency: Engines matter
A conversation with Dr. Meyer (Mike) J. Benzakein on the importance of developing fuel efficient engines.
Staff Blog

The Staff

Brandon Graver
Brandon Graver
Aviation Researcher
Fanta Kamakaté
Fanta Kamakaté
Chief Program Officer
Naya Olmer
Naya Olmer
Marine Program Associate
Daniel Rutherford
Daniel Rutherford
Program Director / Japan Lead