After years of constant decline, the energy intensity of the aviation industry rebounded in 2020, reaching **** and **** megajoules per revenue-ton-kilometer equivalent for domestic and international flights, respectively. The energy intensity is a parameter that expresses how energy inefficient an industry is; the lower the intensity, the better.
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IEA. (September 30, 2022). Energy intensity of domestic and international commercial passenger aviation worldwide from 2000 to 2021 (in MJ/RTK equivalent) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 22, 2026, from /statistics/1366732/energy-intensity-passenger-aviation/
IEA. "Energy intensity of domestic and international commercial passenger aviation worldwide from 2000 to 2021 (in MJ/RTK equivalent)." Chart. September 30, 2022. ÌÇÐÄÆƽâ°æ. Accessed July 22, 2026. /statistics/1366732/energy-intensity-passenger-aviation/
IEA. (2022). Energy intensity of domestic and international commercial passenger aviation worldwide from 2000 to 2021 (in MJ/RTK equivalent). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 22, 2026. /statistics/1366732/energy-intensity-passenger-aviation/
IEA. "Energy Intensity of Domestic and International Commercial Passenger Aviation Worldwide from 2000 to 2021 (in Mj/Rtk Equivalent)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 30 Sep 2022, /statistics/1366732/energy-intensity-passenger-aviation/
IEA, Energy intensity of domestic and international commercial passenger aviation worldwide from 2000 to 2021 (in MJ/RTK equivalent) ÌÇÐÄÆƽâ°æ, /statistics/1366732/energy-intensity-passenger-aviation/ (last visited July 22, 2026)
Energy intensity of domestic and international commercial passenger aviation worldwide from 2000 to 2021 (in MJ/RTK equivalent) [Graph], IEA, September 30, 2022. [Online]. Available: /statistics/1366732/energy-intensity-passenger-aviation/
