Between 2017 and 2019, the greenhouse gas (GHG) emissions of Delta Air Lines have grown from **Â million to ****Â million metric tons of CO2 equivalent. After the coronavirus epidemic, the emission levels of U.S. airlines plummeted to around ****million mtCO2e, before regaining their momentum in the subsequent years. In 2025, Delta Air Lines emitted more than **Â million metric tons of CO2 equivalent, a **** percent increase compared to the previous year's greenhouse gas (GHG) level of emissions.
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Delta Air Lines. (May 11, 2026). Greenhouse gas (GHG) emissions of Delta Air Lines from 2017 to 2025 (in million metric tons COâ‚‚ equivalent) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 19, 2026, from /statistics/1424674/delta-air-lines-ghg-emissions/
Delta Air Lines. "Greenhouse gas (GHG) emissions of Delta Air Lines from 2017 to 2025 (in million metric tons COâ‚‚ equivalent)." Chart. May 11, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 19, 2026. /statistics/1424674/delta-air-lines-ghg-emissions/
Delta Air Lines. (2026). Greenhouse gas (GHG) emissions of Delta Air Lines from 2017 to 2025 (in million metric tons COâ‚‚ equivalent). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 19, 2026. /statistics/1424674/delta-air-lines-ghg-emissions/
Delta Air Lines. "Greenhouse Gas (Ghg) Emissions of Delta Air Lines from 2017 to 2025 (in Million Metric Tons Coâ‚‚ Equivalent)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 11 May 2026, /statistics/1424674/delta-air-lines-ghg-emissions/
Delta Air Lines, Greenhouse gas (GHG) emissions of Delta Air Lines from 2017 to 2025 (in million metric tons COâ‚‚ equivalent) ÌÇÐÄÆƽâ°æ, /statistics/1424674/delta-air-lines-ghg-emissions/ (last visited July 19, 2026)
Greenhouse gas (GHG) emissions of Delta Air Lines from 2017 to 2025 (in million metric tons COâ‚‚ equivalent) [Graph], Delta Air Lines, May 11, 2026. [Online]. Available: /statistics/1424674/delta-air-lines-ghg-emissions/
