Our Changing World

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Dr Claire Concannon follows scientists into the bush, over rivers, back to their labs and many places in-between to cover the most fascinating research being done in Aotearoa New Zealand.

hace 5 días

Meet the Prime Minister's science prize winners

A team that developed a brain cooling treatment for oxygen-deprived babies, a young scientist who created a helpful backseat driver app, a Māori kaiako encouraging her students to weave traditional design and contemporary materials, a paleobiologist communicating about the issues around de-extinction and a researcher investigating how much climate change contributes to extreme weather events: We meet the 2025 Prime Minister's Science Prize winners! Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.… Go to this episode on rnz.co.nz for more details

27 min
22 jun

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 determine if a future eruption might have dangerous levels of hazardous chemicals. Plus, she learns about a voyage to Vanuatu and the Solomen Islands to study the gases and ash of an active volcanic chain there. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more. Learn more: Researchers continue to study New Zealand’s active volcanoes like Whakaari and Ruapehu to try to understand their patterns of eruptions.When Hunga Tonga Hunga Ha‘apai, just north of Tonga’s main island, erupted in 2022 it caused a worldwide tsunami. Ellen Rykers dug into the science behind the phenomenon.The work of the National Geohazard Monitoring Centre is to keep on eye on earthquake, volcano, landslide and tsunami hazards 24 hours a day, 7 days a week.Auckland is built on a network of volcanoes, and underground lava caves.Guests: Dr Jenni Hopkins, Victoria University of WellingtonDr Ian Schipper, Volcano Waka LabGo to this episode on rnz.co.nz for more details

27 min
15 jun

The 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 work on the Miramar Peninsula, but with this new chapter comes new challenges – not just backyards, but a hospital, and even a zoo! Charlie Dreaver meets some of the team out fighting this battle on multiple interesting fronts. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more. Learn more: The target for Wellington to become New Zealand’s first predator-free city was announced by Conservation Minister Tama Potaka in March, as part of a Predator Free 2050 strategy update.In November last year the government added feral cats to the Predator Free 2050 list of targeted predators, likely in response to RNZ’s In-Depth team’s reporting about the destruction they cause, and a pre-election promise.Learn more about other large predator removal projects such as Predator Free Rakiura and Predator Free South Westland, and the plan to make Auckland Island predator free.Guests: Zara Koorey, Predator Free WellingtonJames Wilcocks, Predator Free WellingtonChirs Jerram, Te Nukuao Wellington ZooSally Bain, Predator Free WellingtonGo to this episode on rnz.co.nz for more details

23 min
8 jun

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 pandemic. Since then, interest in the potential uses of RNA to make vaccines and disease treatments has bloomed. In late 2023 a government-funded platform began work to enhance New Zealand’s capacity to design and make RNA. Three years in, how is the platform going? Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more. Learn more: RNA interference (RNAi) technology is being investigated to help honey bees fight off the varroa mite.US based Dyne Therapeutics conducted a clinical trial study of their RNA-based therapeutic for myotonic dystrophy in New Zealand.Our Changing World covered how the new RNA vaccine tech works in 2021.Dr Lisa Connor spoke to RNZ’s health reporter Ruth Hill last August after the US made funding cuts to their RNA vaccine research.Guests: Dr Lisa Connor, Malaghan Institute of Medical ResearchDr Rebecca McKenzie, Malaghan Institute of Medical ResearchGo to this episode on rnz.co.nz for more details

26 min
1 jun

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 project aims to reduce predators numbers on the peninsula and defend its narrow neck from re-invasion. Working across a patchwork of landuse and landowners, the team are using AI traps and technology to help catch the remaining pests. But one feral cat continues to elude them, and the ongoing threat to kiwi from pet dogs is proving tricky to solve. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more. Learn more: Northland kiwi are a genetically distinct subspecies of the North Island brown kiwi, whose numbers are doing pretty good in recent years, due in large part to Operation Nest Egg facilities like the National Kiwi Hatchery.Predator Free South Westland is also working across different land types and usages in their bid to remove pests from a huge area.Wellington is set to be New Zealand’s first predator-free city, with an ambitious target of ten years.RNZ’s Northland reporter Peter de Graaf has been following the situation of dog attacks on kiwi on the Purerua peninsula and kiwi deaths due to cars.Guests: Andy Mentor, Pest Free PureruaZane Wright, Pest Free PureruaMariao Hohaia, Ngāti Rēhia, Tapuaetahi IncorporationGrace Walsh, Onekura road trappersTiwai Rawiri, Ngāti Torehina, Pēwhairangi WhānuiGo to this episode on rnz.co.nz for more details

28 min
25 may

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 the scientists analysing ultramafic rocks in places like Lake Pupuke on Auckland’s North Shore and gases from various hotspots around the country, in the hopes that one day hydrogen could power local communities. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more. Learn more: New Zealand already has hydrogen trucks on our roads and active hydrogen refueling stations. However, some critics say battery technology is a better way to decarbonise. After delays from an international supplier, diesel trucks are being converted to hydrogen in New Zealand. Professor Allan Blackman looks at how the Hindenburg disaster has haunted the development of hydrogen technology and why that might be changing. And Jesse talks with Dr. Linda Wright from the New Zealand Hydrogen Council about if hydrogen could displace diesel.Guests: Kevin Faure, Senior minerals geologist and Team lead National Isotope Centre, Earth Sciences New ZealandPaul Viskovic, Geomodeller, Earth Sciences New ZealandThijs van Soest, Isotope Hydrogeologist, Earth Sciences New ZealandGo to this episode on rnz.co.nz for more details

27 min
18 may

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, but suggest there are challenges to achieving that aim. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more. Learn more: Listen to The Panel Plus with Wallace Chapman, discussing the release of the Cancer Society's election manifesto and treatment options for cancer.Read about the Matariki Fund's plans to eliminate cervical cancer across the Pacific.RNZ's Māori issues reporter Pokere Paewai wrote this article on the need to extend free cervical screening.The efficacy of the HPV vaccine was discussed on Morning Report, following a study which showed a 60% reduction in cervical cancer. Guests: Professor Bev Lawton (Ngāti Porou), is founder/director of Te Tātai Hauora o Hine (the National Centre for Women’s Health Research Aotearoa) at Victoria University of WellingtonNicola Coom, Chief Executive of the Cancer SocietyAlice Hyatt, cancer survivorGo to this episode on rnz.co.nz for more details

25 min
11 may

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 of the kākāpō recovery programme is to restore the mauri of the kākāpō – to have them back in our forests as wild, nameless birds. What are the steps to get there, and how can science help keep kākāpō safe through this transition? Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more. Learn more: Kākāpō need new habitat, could fenced ecosanctuaries be an option? That’s why kākāpō were released into Sanctuary Mountain Maungatautari in July 2023, to start a trial of how they would do in this new, mainland, North Island habitat. A year later, there had already been a lot of lessons learned.One of the possible future habitats mentioned by Deirdre Vercoe is South Westland, where a massive effort is underway to clear stoats, possums and rats from a huge area.For all the details about this record-breaking breeding season, listen to the Kākāpō Files podcast.Guests: Deirdre Vercoe, Kākāpō and Takahē recovery programme operations manager, Department of ConservationDr Andrew Digby, Kākāpō and Takahē recovery programme science and technical advisor, Department of ConservationGo to this episode on rnz.co.nz for more details

28 min

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Now on Wild Sounds: Voices from Antarctica

Need a nature fix? RNZ now has a podcast feed dedicated to our beautifully produced series telling stories from te taiao nature. Check out the Wild Sounds feed – now playing Voices from Antarctica, featuring Alison Ballance reporting from the frozen deep south. Find and follow Wild Sounds on your favourite podcast platform, or listen on RNZ Go to this episode on rnz.co.nz for more details

25/09/2025

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1 min

Great podcast!

25/02/2019

Magsog

Thank you RNZ.

Dr Claire Concannon follows scientists into the bush, over rivers, back to their labs and many places in-between to cover the most fascinating research being done in Aotearoa New Zealand.