Can flights hit net zero by 2025 and at what cost to passengers?

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Can flights hit net zero by 2025 and at what cost to passengers?
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Governments don’t want to tell people they’re going to have to pay more, argues an expert.

It is the perfect start to a holiday: your plane ticket is cheap, your cabin baggage is safely stowed, the engines are roaring into life - and the pilot has announced that there’s no need to worry about the environmental impact.where air travel is entirely carbon neutral thanks to new technology and green ventures that offset the environmental impact.

Earlier this year, Anthony Browne, who was the aviation minister in the Conservative government at the time, said that he thought any increase in ticket prices would be “marginal”.But some experts claim that politicians are not being realistic. Sir Dieter Helm, professor of economic policy at the University of Oxford, argues that there “definitely would be higher cost”.From sharklets to UltraFans

“Because it’s a gearbox, the turbine can run very fast, much more efficiently, the fan can run slower and be much bigger,“ explains Simon Burr, a director at Rolls-Royce. In the UK, SAF is mainly made from cooking oil, some of which is shipped from Asia, and shipping is responsible for 2% of global CO2 emissions.SAF blends fossil fuels with renewable materials such as used oils, fats and agricultural waste

Satellite technology is required to do this: aircraft flying over the Atlantic used to have to fly at least 40 miles apart, but the satellite technology means that aircraft can in theory fly as close as 14 miles apart, allowing more aircraft to fly on the direct flight paths. The batteries alone weigh 800kg, which brings the first challenge: the sheer weight limits how far it can fly.

Cait Hewitt, policy director at the Aviation Environment Federation, is concerned that the current informal offsetting projects may be counterproductive: “They could actually have made that problem a bit worse over time by giving consumers the false impression that the emissions from their flight being cancelled out somehow by an offset.

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