Why the world’s first flight powered entirely by sustainable aviation fuel is a green mirage

A Boeing 787 Dreamliner is set to take off from Heathrow on November 28 and head for JFK airport in New York, powered by so-called sustainable aviation fuel (SAF). According to its operator, Virgin Atlantic, the world’s “first 100% SAF flight” will mark “a historic moment in aviation’s roadmap to decarbonisation”. It is proof of concept, we