In November, a plane powered by 100% ‘sustainable’ jet fuel took off from London to New York. This was seen by some as a milestone in reducing the carbon footprint of air travel, which accounts for around 2.5% of global CO2.2 emissions. Could this be the start of a greener way to fly? Madeleine Finlay talks to Guy Gratton, Associate Professor of Aviation and the Environment at Cranfield University, to find out if the future of aviation can ever truly be debt-free.
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