Meara, John and Cahlen Stace took the day of from Beckenham School to attend the climate strike. This is the third strike the family has attended. Photo: Claire Booker : Christchurch School Strike 4 Climate attracts thousands

Rangiora High School student Holly Whittaker with her sign at the protest. Photo: Claire Booker : Christchurch School Strike 4 Climate attracts thousands

Justyna Giejsztowt, who has a PhD in Ecology said: "We have been talking for a long time, and we haven't seen much change. People just need to trust in science," : Christchurch School Strike 4 Climate attracts thousands

Students at the climate strike on Friday. Photo: Claire Booker : Christchurch School Strike 4 Climate attracts thousands

Holly Whittaker, Danyelle Boulter and Jorga Miles of Rangiora High School. Photo: Claire Booker : Christchurch School Strike 4 Climate attracts thousands

Emily Graham and Winnie White: "This is just the beginning. It's only going to get bigger. When you can make it, you've got to be here." : Christchurch School Strike 4 Climate attracts thousands

Protesters packed into Cathedral Square. Photo: Claire Booker : Christchurch School Strike 4 Climate attracts thousands

The protest begins in Cathedral Square. Photo: Claire Booker : Christchurch School Strike 4 Climate attracts thousands

The march from Cathedral Square. Photo: Claire Booker : Christchurch School Strike 4 Climate attracts thousands