Green Party co-leader James Shaw has called on school students to start a "rolling series of climate strikes" until next year's election to put pressure on politicians and businesses to take greater action.
Shaw, who is also Climate Change Minister, spoke outside Parliament where hundreds of students who'd skipped school for the day joined a global climate strike.
Thousands of students nationwide are involved in marches and rallies, organised by global movement Fridays For Future, and were joining countries across the world taking part over the course of the day.
Students are gathered in Wellington, Auckland, Christchurch and New Plymouth to draw attention to global warming and demand action from leaders.
Wellington's School Strike 4 Climate group has outlined six key demands, including the country's biggest greenhouse gas emitter - the agricultural sector - but also transport emissions.