Reducing Carbon Emission Towards Sustainable Aviation
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Abstract
Aviation is a highly energy-intensive sector, making it the second-biggest source of greenhouse gas emissions in the transportation sector, with road transport leading the way. Emissions continue to rise despite advancements in aircraft efficiency over the past six decades due to the increasing demand for air travel. Reviewing the reduction of carbon emissions in aviation is essential to protect the environment, drive innovation and secure a sustainable future in aviation. Stakeholders responsible for reducing carbon emissions are primarily found in the industrial sector. The challenges and opportunities related to reducing carbon emissions in aviation are investigated with a focus on Sustainable Aviation Fuels (SAF), advancements in fuel-efficient aircraft, and improvements in air traffic management. Studies have shown that using SAF, derived from renewable resources such as waste oils, algae, and municipal waste, can reduce lifecycle carbon emissions by up to 80% compared to conventional jet fuel. The use of SAF is limited due to cost and the difficulty in producing it. In addition, the use of electric and hydrogen-powered aircraft is highlighted, as it can revolutionise the industry by offering zero-emission alternatives for both short- and long-haul flights. Recommendations are provided to achieve net-zero emissions by 2050, aligning with the Sustainable Development Goals (SDGs) set by the United Nations, specifically SDG 11 (Sustainable Cities and Communities) and SDG 13 (Climate Action).
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References
J. Overton, "The Growth in Greenhouse Gas Emissions from Commercial Aviation," Environmental and Energy Study Institute, 2022. [Available online] https://www.eesi.org/papers/view/fact-sheet-the-growth-in-greenhouse-gas-emissions-from-commercial-aviation.
"Commercial Airlines Worldwide - Fuel consumption 2005-2024," Statista Research Department, Statista, 2024. [Available online] https://www.statista.com/statistics/655057/fuel-consumption-of-airlines-worldwide.
"Sustainable Aviation Fuel: Current Status and Future Prospects," Industry EMEA, 2024. [Available online] https://www.linkedin.com/pulse/sustainable-aviation-fuel-current-status-future-prospects-qmgbf.
M. Zbella and A. Bardenheier, "Radiative Forcing Associated With Emissions from Air Travel," Stanford Scope 3 Emissions Program. [Available online] https://sustainable.stanford.edu/sites/g/files/sbiybj26701/files/media/file/s3-radiative-forcing-rfi-memo_public.pdf.
"The Impact of Air Travel On Our Climate," Atmosfair. [Available online] https://www.atmosfair.de/en/air_travel_and_climate/flugverkehr_und_klima/climate_impact_air_traffic.
"Airplane Pollution," T & E. [Available online]
https://www.transportenvironment.org/topics/planes/airplane-pollution.
M. Mirolo and L. Fedirko, "How Aviation's Impact On Global Warming Goes Beyond Carbon Emissions," Climateworks Foundation, 2022. [Available online] https://www.climateworks.org/blog/how-aviations-impact-on-global-warming-goes-beyond-carbon-emissions/.
C. Wey and C. M. Lee, "Aircraft Emissions: Gaseous and Particulate," Green Aviation: Reduction of Environmental Impact Through Aircraft Technology and Alternative Fuels, CRC Press, pp. 25-47, 2017.
V. Undavalli et al., "Recent Advancements in Sustainable Aviation Fuels," Prog. Aerospace Sci., vol. 136, pp. 100876, 2023.
L. Brodzik, W. Prokopowicz, B. Ciupek and A. Frackowiak, "Minimizing The Environmental Impact of Aircraft Engines with The Use of Sustainable Aviation Fuel (SAF) and Hydrogen," Energies, vol. 18, no. 3, pp. 472, 2025.
M. D'Silva, "Sustainable Aviation Fuel: Current Status and Future Prospects," Industry Asia-Pacific, 2024. [Available online] https://www.industry-asia-pacific.com/news/86654-sustainable-aviation-fuel-current-status-and-future-prospects.
"Net Zero by 2050: Sustainable Aviation Fuels (SAF)," International Air Transport Association. [Available online]
https://www.iata.org/en/programs/environment/sustainable-aviation-fuels/.
M. Maslin and I. Hanson, "Five Ways to Make Aviation More Sustainable Right Now," 2025.
[Available online] https://www.ucl.ac.uk/news/2025/jan/analysis-five-ways-make-aviation-more-sustainable-right-now.
U. Kale, I. Jankovics, A. Nagy and D. Rohács, "Towards Sustainability in Air Traffic Management," Sustainability, vol. 13, no. 10, pp. 5451, 2021.
I. Kabashkin, B. Misnevs and O. Zervina, "Artificial Intelligence in Aviation: New Professionals for New Technologies," Appl. Sci., vol. 13, no. 21, pp. 11660, 2023.
R. Vepa, “Electric Aircraft Dynamics: A Systems Engineering Approach,” CRC Press, 2020.
"Hybrid Electric Aircraft: Reducing Fuel Burn Through Electrification," National Aeronautics and Space Administration. [Available online] https://www.nasa.gov/aeroresearch/hybrid-electric-aircraft.
"Putting The Focus on Sustainability in The Aviation Industry," Report Yak Research Department, 2024. [Available online] https://reportyak.com/blog/sustainability-aviation-industry/.
L. Dray and A. W. Schäfer, "Initial Long-Term Scenarios for COVID-19’s Impact on Aviation and Implications for Climate Policy," Transport. Res. Rec., vol. 2675, no. 5, pp. 573–582, 2021.
A. Guterres, "Climate Action," United Nations, 2022. [Available online] https://www.un.org/en/climatechange/net-zero-coalition.
"As The UK Prepares to Host The COP26 Climate Summit, British Airways and Its Partners Achieve Record Carbon Emissions Reductions As Part Of Their 'Perfect Flight' Demonstration Show How Aviation Is Decarbonizing," British Airways, 2021. [Available online]
B. Wang, Z. J. Ting and M. Zhao, "Sustainable Aviation Fuels: Key Opportunities and Challenges in Lowering Carbon Emissions for Aviation Industry," Carbon Capt. Sci. & Technol., vol. 13, pp. 100263, 2024.
"Alternative Fuels Used for Aviation," European Alternative Fuels Observatory. [Available online] https://alternative-fuels-observatory.ec.europa.eu/transport-mode/aviation/alternative-fuels-for-aviation.
E. Cabrera and J. M. Melo de Sousa, “Use of Sustainable Fuels in Aviation—A Review,” Energies, vol. 15, no. 7, pp. 2440, 2022.
D. Idowu-Agida, "The IATA's Four-Pillar Strategy for Greener Future in Aviation," 2024.
[Available online] https://aviationforaviators.com/2024/11/19/iatas-four-pillar-strategy-for-a-greener-future-in-aviation/.
L. Pires da Mata Costa et al., "Capture and Reuse of Carbon Dioxide (CO2) for A Plastic's Circular Economy: A Review," Processes, vol. 9, no. 5, pp. 759, 2021.
Q. Wang, F. Mustafa, L. Bu, S. Zhu, J. Liu and W. Chen, “Atmospheric Carbon Dioxide Measurement from Aircraft and Comparison with OCO-2 and Carbon Tracker Model Data,” Atmos. Meas. Tech.., vol. 14, pp. 6601–6617, 2021.
"Neste Expands Its Sustainable Aviation Fuel Supply Capabilities in Europe in Partnership with VTTI," Neste, 2024. [Available online] https://www.neste.com/en-sg/news/neste-expands-its-sustainable-aviation-fuel-supply-capabilities-in-europe-in-partnership-with-vtti.
C. Gutiérrez-Antonio, F. I. Gómez-Castro, J. A. de Lira-Flores and S. Hernández, "A Review on The Production Processes of Renewable Jet Fuel," Renew. and Sustain. Ener. Rev., vol. 79, pp. 709-729, 2017.
N. A. Qasem et al., "A Recent Review of Aviation Fuels and Sustainable Aviation Fuels," J. Therm. Anal. and Calori., vol. 149, no. 10, pp. 4287-4312, 2024.
F. U. Madugu and A. R. Lea-Langton, "Resource Options and Challenges for Sustainable Aviation Fuels," in Key Themes in Energy Management: A Compilation of Current Practices, Research Advances, and Future Opportunities, Springer Nature, pp. 159-179, 2024.
"The Future of Hybrid-Electric Flight: Cost and Climate Benefits," McKinsey & Company, 2021. [Available online]
L. Li, "Aircraft Noise Reduction Design Approaches," PhD Dissertation, National Aviation University, 2021.
"4 Ways Airlines Can Reduce Their Carbon Footprint," i6 Group, 2021. [Available online] https://www.i6.io/blog/4-ways-airlines-can-reduce-their-carbon-footprint.
M. Sauer, M. Steiner, R. D. Sharman, J. O. Pinto and W. K. Deierling, "Tradeoffs for Routing Flights in View of Multiple Weather Hazards," J. Air Transport., vol. 27, no. 2, pp. 70-80, 2019.
C. N. Njo, "An Examination of Carbon Reduction Practices of UK Airlines," PhD Dissertation, Leicester Business School, 2023.
J. Ordieres-Meré, T. Prieto Remon and J. Rubio, "Digitalization: An Opportunity for Contributing to Sustainability from Knowledge Creation," Sustainability, vol. 12, no. 4, pp. 1460, 2020.
M. Gössling, "Net Zero Aviation: Transition Barriers and Radical Climate Policy Design Implications," Sci. The Total Environ., vol. 912, 2024. [Available online]
https://www.sciencedirect.com/science/article/pii/S0048969723077379.
"Country Action: Aviation," Climate Action Tracker, 2022. [Available online] https://climateactiontracker.org/sectors/aviation/country-action/.
"Reducing Emissions from Aviation," European Commission - Climate Action, 2024. [Available online] https://climate.ec.europa.eu/eu-action/transport/reducing-emissions-aviation_en.
"Country Action: Aviation Sector," Climate Action Tracker, 2022. [Available online] https://climateactiontracker.org/sectors/aviation/2022-09-22/country-action/.
L. Krämer, "Climate Change Mitigation in The Aviation Sector: A Critical Overview of National and International Initiatives," Transnat. Environ. Law, vol. 12, no. 1, pp. 49-71, 2023.
Le Monde, "France's Short-haul Flight Ban Comes into Force," France Transport, 2023.
[Available online] https://www.lemonde.fr/en/france/article/2023/05/23/france-s-short-haul-flight-ban-comes-into-force_6027699_7.html.
"Kingdom of the Netherlands—Netherlands: Technical Assistance Report—Greening the Tax System," IMF Country Report No. 23/107, 2023.
[Available online] https://www.elibrary.imf.org/view/journals/002/2023/107/article-A002-en.xml.
"Global Market Forecast 2022–2041: World Fleet to Double in 20 Years, Driven by Growth and Replacement Needs," Airbus, 2022. [Available online] https://www.airbus.com/en/products-services/commercial-aircraft/global-market-forecast.
S. Gössling and A. Humpe, "The Global Scale, Distribution and Growth of Aviation: Implications for Climate Change," Glob. Environ. Change, vol. 65, pp. 102194 2020.
L. Dray et al., "Cost and Emissions Pathways Towards Net-Zero Climate Impacts in Aviation," Nat. Clim. Change, vol. 12, pp. 956–962, 2022.
M. Pallokat, "Aircraft Fuel from Human Excrement," BILD.de, 2024. [Available online] https://www.bild.de/ratgeber/2024/ratgeber/umweltfreundlicher-kerosin-ersatz-flugzeug-treibstoff-aus-menschenkot-86614134.bild.html.
“Directorate-General for Mobility and Transport,” European Aviation Environmental Report 2025, European Commission, 2025. [Available online]
A. Niranjan, "Tax on Europe's Frequent Flyers Could Raise €64bn A Year - Study," The Guardian, 2024. [Available online] https://www.theguardian.com/world/2024/oct/17/tax-on-europes-frequent-flyers-could-raise-64bn-a-year-study.