A Just Stop Oil protester, Cambridge University student Cressida Gethin, delayed 4,000 plane passengers in a protest against the UK reaching the hottest temperature on record, a court heard. The 22 year-old music student scaled a gantry above the M25 near Heathrow on July 20 2022, the day after the UK recorded a temperature of over 40C for the first time. As a result of the protest by the climate activist group, 3,923 British Airways customers were affected by cancellations and delays, said senior manager at British Airways, Edwin Hall, in a statement read to Isleworth Crown Court on Thursday …