Young New Zealanders say the Prime Minster needs to tell world leaders to stop dithering and actually do something to avoid a global climate-change catastrophe.
Jacinda Ardern's in New York to attend the UN General Assembly and she's to address the UN summit on climate change overnight New Zealand time.
But her speech comes in the wake of a dire omnibus report which details in stark terms how the climate is changing faster than forecast.
Hamish Cardwell filed this report.
