Analysing ash, and Vanuatu's volcanoes
New Zealand is a land formed by volcanoes, including some still active. Claire Concannon meets a researcher analysing ash deposits to determ...
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Our Changing World
Getting out in the field and the lab to bring you New Zealand stories about science, nature and the environment.
Our Changing World Podcast Guide
Listen to Our Changing World, a Science & Medicine podcast by RNZ. Stream 307 episodes in English, follow new audio stories, and play episodes online on Radio and Podcast.
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Episodes
20 of 307 episodesThe challenges of making our capital city predator free
Phase two of Predator Free Wellington’s groundbreaking project to rid our capital of rats is well underway. They’ve learned a lot from their...
Building New Zealand's RNA capabilities
Scientists had long been exploring RNA technology as a way to make vaccines before it had it’s breakout appearance during the Covid-19 pande...
Working towards a pest free Purerua-Mataroa peninsula
One peninsula to the north of the Bay of Islands is home to an estimated three thousand Northland brown kiwi. The Pest Free Purerua-Mataroa...
Hydrogen detectives
Could the answer to the current fuel crisis be right under our noses? On Our Changing World this week, Sharon Brettkelly talks to some of th...
How can Aotearoa eliminate cervical cancer?
The World Health Organisation has set an ambitious goal to eliminate cervical cancer. New Zealand health experts are optimistic we can do it...
Looking to a wild future for kākāpō
Today kākāpō breed on three remote islands, each bird wears a transmitter and they are carefully monitored and minded. But the ultimate goal...
A time of change for kākāpō
So far, 2026 has been the biggest kākāpō breeding season of all time, with more chicks hatched than ever before. The current challenge is to...
A taste for science
The food you see on the supermarket shelves doesn't end up there by accident. It's often been rigorously tested for likeability. This week o...
Keeping the South Island Psa-V free
In 2010 the Psa-V bacterial disease was found in a Bay of Plenty kiwifruit orchard. This was the beginning of a terrible ordeal for many kiw...
The unexpected potential of ketamine
Ketamine was first developed as an anaesthetic, and today is taken by some as a party drug. But since 2000, research has emerged showing it...
Building an army to stop a stink bug invasion
In the Auckland suburb of Mt Albert there's a particular brand of doomsday prepping going on. Our Changing World visits the Bioeconomy Scien...
Monitoring plastic pollution in Northland, and the elusive bittern
Our Changing Word heads to Whangārei to speak to a Northland Regional Council scientist whose been using stormwater drains to estimate the s...
The tree keepers
In Dunedin the local tree crop association has been looking after a heritage apple orchard, but some mixed up labels meant they weren’t quit...
How to grow a kiwi
Take a (very) large egg, some insects (plus specially developed food), and a safe place to put on weight for a while. This is how you grow a...
Iwi-led conservation in the Kaimai Mamuku ranges
In the Kaimai Mamuku ranges iwi-led conservation projects are tackling pests, removing weeds and planting natives to restore their whenua. N...
The thorny issue of the long-spined urchin
A native species is taking over a jewel-in-the crown marine reserve. But what can be done? Centrostephanus, the long-spined urchin, is munch...
The Democratisation of Space?
New Zealand is third in the world for the number of orbital rocket launches from our shores, sitting just behind the US and China. Phil Vine...
Science for future fashion
We know there are issues with sustainability within the fashion industry - can science help create a better future? Claire Concannon visits...
Going for eradication - Predator free South Westland
Since 2018 there's been a massive effort underway to clear over 110,000 hectares of South Westland of possums, rats and stoats. As the pest...