Guardian: Lily Kember is 21 years old. Late last year, with 50 other activists, she shut down Stansted airport, in the process preventing thousands of tonnes of CO2 being released into the atmosphere. A few minutes before her arrest she told listeners of the Today programme: “We’re here because our parents’ generation has failed us and it’s now down to young people to stop climate change by whatever peaceful means we have left.” She was by no means the youngest person who cut through the …