Research suggests slower flight speeds to reduce emissions

A new study from the University of Cambridge proposes that reducing flight speeds by 15% could lower fuel consumption by 5–7%, contributing to more sustainable air travel. The report acknowledges potential downsides, such as longer flight times and potential resistance from passengers, but emphasizes the importance of such measures for reducing aviation emissions.

The report also calls for faster replacement of older aircraft with more efficient models and advocates for planes to be used on routes for which they were specifically designed. Professor Rob Miller, director of the Whittle Laboratory at the university, stressed the need for a “whole systems process change,” involving airlines, manufacturers, and airports working together.

In the future, aircraft may need to be designed specifically for short-haul flights, rather than using long-range planes like the Airbus A320 and Boeing 737, which are less efficient for shorter distances. This would improve fuel efficiency and reduce emissions further.