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Published on: August 14, 2020
The engineering options for mitigating the climate impacts of aviation
1Centre for Transport Studies, Imperial College London, London SW7 2AZ, UK. v.williams@imperial.ac.uk
Summary
Aviation
Area of Science:
- Environmental science
- Aerospace engineering
- Climate change mitigation
Background:
- Aviation is a significant and growing contributor to climate change.
- Emissions at high altitudes have unique and potent climate impacts.
- Continued traffic growth necessitates urgent technological solutions.
Purpose of the Study:
- To review engineering options for mitigating aviation's climate impact.
- To explore both CO2 and non-CO2 emission reduction strategies.
- To highlight the role of integrated aircraft and airspace technologies.
Main Methods:
- Review of current and emerging aircraft technologies.
- Analysis of air traffic management and airspace design innovations.
- Assessment of integrated engineering solutions for environmental performance.
Main Results:
- Fuel efficiency improvements reduce carbon dioxide (CO2) emissions.
- Contrail formation and other non-CO2 impacts require specific mitigation.
- Holistic changes in airframes, engines, avionics, and air traffic systems are essential.
Conclusions:
- Engineering solutions are crucial for a sustainable aviation future.
- A 'green air traffic system' requires a combination of technological advancements.
- Technological innovation must complement market-based measures for effective climate action.
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