What UN IPCC report says about how climate change affects NZ

The UN's climate change body has released a new report into the stark reality of what's in store for the planet as climate change progresses and the temperatures warm. The landmark study warns of increasingly extreme heatwaves, droughts and flooding, saying the human influence is "unequivocal". Our reporter Ella Stewart spoke with senior research scientist at 'Manaaki Whenua Landcare Research', Dr Nicholas Cradock-Henry, who explains what it says about New Zealand.