Greta Thunberg: Children react to climate activist's big speech
School children have given their reaction to Greta Thunberg's powerful speech at the UN Climate Action Summit in New York.
In the speech the 16-year-old activist asked world leaders to do more to tackle climate change.
After watching the speech one pupil said: "Greta's inspired me to look at the world differently".
Not just Greta: Seven other young climate activists from around the world.