The United States was the highest emitter of carbon dioxide (COâ‚‚) emissions from domestic and international passenger flights in 2024. In that year, U.S. COâ‚‚ emissions from domestic air passenger transport reached around *** million metric tons (MtCOâ‚‚)
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OECD. (July 14, 2025). Carbon dioxide emissions of domestic and international passenger flights worldwide in 2024, by leading country (in million metric tons) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 03, 2026, from /statistics/1056496/co2-emissions-domestic-international-commercial-aviation-by-country/
OECD. "Carbon dioxide emissions of domestic and international passenger flights worldwide in 2024, by leading country (in million metric tons)." Chart. July 14, 2025. ÌÇÐÄÆƽâ°æ. Accessed August 03, 2026. /statistics/1056496/co2-emissions-domestic-international-commercial-aviation-by-country/
OECD. (2025). Carbon dioxide emissions of domestic and international passenger flights worldwide in 2024, by leading country (in million metric tons). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 03, 2026. /statistics/1056496/co2-emissions-domestic-international-commercial-aviation-by-country/
OECD. "Carbon Dioxide Emissions of Domestic and International Passenger Flights Worldwide in 2024, by Leading Country (in Million Metric Tons)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 14 Jul 2025, /statistics/1056496/co2-emissions-domestic-international-commercial-aviation-by-country/
OECD, Carbon dioxide emissions of domestic and international passenger flights worldwide in 2024, by leading country (in million metric tons) ÌÇÐÄÆƽâ°æ, /statistics/1056496/co2-emissions-domestic-international-commercial-aviation-by-country/ (last visited August 03, 2026)
Carbon dioxide emissions of domestic and international passenger flights worldwide in 2024, by leading country (in million metric tons) [Graph], OECD, July 14, 2025. [Online]. Available: /statistics/1056496/co2-emissions-domestic-international-commercial-aviation-by-country/
