'I want you to panic': 16-year-old issues climate warning at Davos – video

Greta Thunberg, a Swedish climate activist, has told world leaders: 'I don't want you to be hopeful, I want you to panic. I want you to feel the fear I feel every day and then I want you to act.' In an impassioned warning to act now on climate change, Thunberg told her audience at Davos: 'Either we choose to go on as a civilisation or we don't'

• 'Our house is on fire': Greta Thunberg,16, urges leaders to act on climate