The Royal Air Force has partnered with a synthetic fuel manufacturer to minimise the carbon footprint of its flights

This is following a social media campaign in November asking the public to travel by train, rather than plane

That is part of a new pledge by 20 airlines to use electric and hydrogen-powered planes in a bid to lower their emissions

Rolls-Royce has started building a demonstrator engine with technology to improve efficiency and make aviation more sustainable

The measure allows airlines to keep their rights to slots even if they don’t operate flights at least 80% of the time