Insights from recent episode analysis
Audience Interest
Podcast Focus
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Platform Reach
Insights are generated by CastFox AI using publicly available data, episode content, and proprietary models.
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Total monthly reach
Estimated from 2 chart positions in 2 markets.
By chart position
- 🇳🇿NZ · Science#1730K to 100K
- 🇮🇸IS · Science#823K to 10K
- Per-Episode Audience
Est. listeners per new episode within ~30 days
9.9K to 33K🎙 Daily cadence·300 episodes·Last published 2d ago - Monthly Reach
Unique listeners across all episodes (30 days)
33K to 110K🇳🇿91%🇮🇸9% - Active Followers
Loyal subscribers who consistently listen
13K to 44K
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* Data sourced directly from platform APIs and aggregated hourly across all major podcast directories.
On the show
From 14 epsHosts
Recent guests
Recent episodes
Analysing ash, and Vanuatu's volcanoes
Jun 22, 2026
Unknown duration
The challenges of making our capital city predator free
Jun 15, 2026
Unknown duration
Building New Zealand's RNA capabilities
Jun 8, 2026
Unknown duration
Working towards a pest free Purerua-Mataroa peninsula
Jun 1, 2026
27m 57s
Hydrogen detectives
May 25, 2026
26m 33s
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| Date | Episode | Topics | Guests | Brands | Places | Keywords | Sponsor | Length | |
|---|---|---|---|---|---|---|---|---|---|
| 6/22/26 | 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 | — | ||||||
| 6/15/26 | 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 | — | ||||||
| 6/8/26 | 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 | — | ||||||
| 6/1/26 | Working towards a pest free Purerua-Mataroa peninsula✨ | pest controlkiwi conservation+4 | Andy MentorZane Wright+3 | Pest Free PureruaNgāti Rēhia+4 | Purerua-Mataroa peninsulaBay of Islands+2 | Northland brown kiwipest free+5 | — | 27m 57s | |
| 5/25/26 | Hydrogen detectives✨ | hydrogen technologyfuel crisis+4 | Dr. Linda WrightKevin Faure+2 | New Zealand Hydrogen Council | Lake PupukeAuckland+1 | hydrogenfuel crisis+5 | — | 26m 33s | |
| 5/18/26 | How can Aotearoa eliminate cervical cancer?✨ | cervical cancerhealthcare+4 | Professor Bev LawtonNicola Coom+1 | Te Tātai Hauora o HineVictoria University of Wellington+2 | AotearoaNew Zealand | cervical cancerelimination+6 | — | 25m 26s | |
| 5/11/26 | Looking to a wild future for kākāpō✨ | kākāpō recoverywildlife conservation+3 | Deirdre VercoeDr Andrew Digby | Department of ConservationKākāpō Files podcast | Sanctuary Mountain MaungatautariSouth Westland | kākāpōconservation+7 | — | 28m 06s | |
| 5/4/26 | A time of change for kākāpō✨ | kākāpōbreeding+3 | Claire Concannon | RNZ | breeding islands | kākāpōbreeding season+3 | — | 27m 18s | |
| 4/27/26 | A taste for science✨ | food scienceconsumer preferences+3 | Christina RoigardDavid Jin+1 | New Zealand Institute for Bioeconomy Science LimitedSchool of Chemical Science at the University of Auckland+1 | — | food testingtaste preferences+3 | — | 28m 04s | |
| 4/20/26 | Keeping the South Island Psa-V free✨ | Psa-V bacterial diseasekiwifruit industry+3 | Falk KalamorzRebecca Manners+2 | Bioeconomy Science InstituteKiwifruit Vine Health | Te WaipounamuBay of Plenty+2 | Psa-Vkiwifruit+5 | — | 26m 32s | |
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| 4/13/26 | The unexpected potential of ketamine✨ | ketaminetreatment-resistant depression+3 | — | ketamineRNZ | New Zealand | ketaminedepression+3 | — | 26m 38s | |
| 4/6/26 | Building an army to stop a stink bug invasion✨ | biosecurityinvasive species+3 | Dr Gonzalo AvilaKarina Santos+1 | Brown Marmorated Stink BugBioeconomy Science Institute+2 | AucklandMt Albert+1 | Samurai WaspsBrown Marmorated Stink Bug+5 | — | 26m 17s | |
| 3/30/26 | Monitoring plastic pollution in Northland, and the elusive bittern✨ | plastic pollutionenvironmental science+3 | Richard GriffithsPeter Langlands+1 | Northland Regional CouncilBittern Conservation – New Zealand+2 | WhangāreiChristchurch+1 | plastic pollutionbittern conservation+3 | — | 26m 37s | |
| 3/23/26 | The tree keepers✨ | heritage apple orchardtree propagation+3 | young researcherpropagation scientist | Dunedin local tree crop association | DunedinRotorua | heritage applestree identification+3 | — | 26m 14s | |
| 3/16/26 | How to grow a kiwi✨ | kiwi conservationhatching process+3 | Emma BeanCarole Dean+1 | National Kiwi HatcheryKākāpō Files II | ŌkāritoSouth Island+2 | kiwihatching+5 | — | 30m 41s | |
| 3/9/26 | Iwi-led conservation in the Kaimai Mamuku ranges✨ | iwi-led conservationpest control+3 | Louise SaundersMohi Korohina+1 | Manaaki Kaimai Mamuku Trust | Kaimai Mamuku rangesWairere falls+1 | conservationKaimai Mamuku+5 | — | 26m 22s | |
| 3/2/26 | The thorny issue of the long-spined urchin✨ | marine biologyenvironmental management+3 | — | CentrostephanusDOC+1 | Poor Knights Islands | long-spined urchinCentrostephanus+3 | — | 26m 34s | |
| 2/23/26 | 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 discovers some of the challenges raised by our push into the unknown and how it is changing the final frontier.Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.Learn more:Through a science experiment on the ISS, New Zealand researchers have been taking advantage of the unique conditions in low earth orbit to investigate commercial opportunities. While New Zealand is well known as a place from which to launch rockets, we do not have a lot of our own hardware in space (the University of Auckland does have TPA-1 CubeSat). But that might be about to change.Tech bros turned space bros like Elon Musk are making big waves out in orbit. The latest news is that Musk is hoping to harness the sun through satellites to power AI data centres.The New Zealand government's biggest investment in an international space mission ended in failure last year after MethaneSAT, a satellite built to detect methane emissions around the world, lost contact. While there are challenges inherent in humans and their technology being in space, that’s not all that is going on. Scientists are keeping a close eye on an active black hole and bright lights have Northland locals turning their eyes to the skies.Guests:Mark Rocket, CEO Kea AerospaceDr Priyanka Dhopade, senior lecturer in mechanical and mechatronics engineering, University of AucklandDr Tuana Yazici, space law expertGo to this episode on rnz.co.nz for more details | — | ||||||
| 2/16/26 | 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 the Bioeconomy Science Institute in Rotorua to learn how New Zealand scientists are contributing to a massive multi-national project aimed at shaping the textile industry of tomorrow. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.Learn more:UPWEARS has their own research project page if you want to learn more.Learn more about how the Bioeconomy Science Institute (formally Scion) is figuring out how to make new materials and products using bio-waste products rather than fossil fuels.The rise of synthetic fibres impacted the wool industry here in New Zealand, although some entrepreneurs and weavers are making it work for them.Guests:Dr Yi Chen, Bioeconomy Science Institute, and UPWEARSDr Robert Abbel, Bioeconomy Science Institute, and UPWEARSSean Taylor, Bioeconomy Science Institute, and UPWEARSLouise Le Gall, Bioeconomy Science Institute, and UPWEARSDr Kate Parker, Bioeconomy Science Institute, and UPWEARSGo to this episode on rnz.co.nz for more details | — | ||||||
| 2/9/26 | 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 numbers have dropped the native flora and fauna seem to have flourished. The eradication stage is now nearing completion, and the focus is switching to maintenance. What will it take to keep the pests out long-term? And what can be learned from this large-scale project that could be used elsewhere in Aotearoa? Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.Learn more:Read/Listen to the rest of the reports from Tess Brunton’s reporting trip to the West Coast, about the eradication project, the work of species dogs, the feedback from tour operators and how rowi, New Zealand’s rarest kiwi, has been helped come back from the brink.For more on the use of AI in pest management project, listen to how the Southern Lakes Sanctuary team have been making use of it at Wye Creek.Guests:Chad Cottle, Predator Free South WestlandEthan Perry, Predator Free South WestlandNate St Hill, Predator Free South WestlandPouri Rakete-Stones, Predator Free South WestlandDion Arnold, White Heron Sanctuary ToursGo to this episode on rnz.co.nz for more details | — | ||||||
| 2/2/26 | Insect vibes | Some insects communicate using a secret language that we can’t sense – a language of vibrations. Now researchers at the Bioeconomy Science Institute are starting to decode what insects are saying to each other. They hope to harness this knowledge to develop new, chemical-free methods of pest control to help farmers and growers. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.Learn more:Insects can also be recruited to help. For example, insects can be released into New Zealand for biocontrol in the effort to combat invasive weeds.While we often talk about the impact of invasive mammals on New Zealand’s bird life, they are also a problem for native insects too.We’ve got some invasive pest spiders here too, but researchers are trying to figure out if they can trap them by developing a special spider perfume.Guests:Dr Mark MacDougall, Bioeconomy Science InstituteDr Lloyd Stringer, Bioeconomy Science InstitutePete Mundy, Castle Rock OrchardsDr Rachael Horner, Bioeconomy Science InstituteDr Bethan Shaw, Bioeconomy Science InstituteGo to this episode on rnz.co.nz for more details | — | ||||||
| 1/26/26 | Sight in the womb | When do humans begin to interact with the world, and develop our sense of self? When we are born? Or might it start even earlier than that? Our visual systems are a key way that we perceive the world. New findings from the University of Waikato have shown that light can enter the womb and that we might already be learning about the world before we arrive in it. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.Learn more:Listen to Our musical minds to learn why, to psychologists, humans’ musical ability is just weird.Like our sense of vision, our ability to hear also involves physical inputs from the world around us combined with the processing and prior knowledge of our brains. But sometimes things can go a bit awry, such as happens for those with tinnitus.Our visual system is evolved for daylight, but what about those creatures that live in the deep darkness, such as squid.Professor Vincent Reid’s early research in this area was covered by RNZ podcast ‘This Way Up’ in 2017.Hear more from William Ray in the award-winning Black Sheep podcast series, or in a recent Our Changing World episode about the Flowers of the Underworld.Guests:Professor Vincent Reid, University of WaikatoAssociate Professor Jacob Heerikhuisen, University of WaikatoWilliam Ray, Janella Espinas, James Espinas RayGo to this episode on rnz.co.nz for more details | — | ||||||
| 1/19/26 | Summer science: Methane-busting seaweed | A Southland company is growing red seaweed as a supplement that’s been shown to significantly reduce methane emissions in beef and dairy cattle. In our last summer science series episode, Cosmo Kentish-Barnes of the Country Life team heads to Bluff to learn more.Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.Learn more: You can read Cosmo Kentish-Barnes' story about this topic, Red seaweed cuts methane emissions from cattle, scientists say.Cosmo signed off from the Country Life team earlier this year, after 17 years as the show's South Island producer. You can listen to his final episode.There are also pāua and whitebait farms operating out of the Ocean Beach Aquaculture Hub in Bluff. Kate Evans visited both ventures in a 2024 episode of Voice of Tangaroa, Fish out of water.Guest:Brent Jackson, production scientistGo to this episode on rnz.co.nz for more details | — | ||||||
| 1/13/26 | Summer science: Why we spend | Why do we spend more than we need to? Is it mood, FOMO, the desire to impress? Or maybe some tricky behavioural triggers we're not even aware of? Our summer science series continues with an episode of the RNZ podcast Thrift, in which Katy Gosset gets to the heart of the matter with a consumer behaviourist, and shares some tips to stop us spending.Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.Learn more: You can read about the psychology of spending in RNZ's story: Why do we spend more than we need to?Thrift is an upbeat podcast that offers wise ways to beat the cost of living crisis and get the best from your money. Listen to more episodes of Thrift.Guest:Ekant Veer, consumer behaviouristGo to this episode on rnz.co.nz for more details | — | ||||||
| 1/5/26 | Summer science: The science of ageing | We’d all like to know how to live long healthy lives, and Kim Hill is no different. In this episode of Kim Hill Wants To Know, she talks to geneticist Dame Linda Partridge about the scientific breakthroughs that could mean the end to aging as we know it. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more.Learn more:In 2023, Our Changing World spoke to researchers about what happens to our muscles as we grow and age.Kim Hill Wants To Know sees Kim back asking questions in her inimitable style. She has conversations with guests from around the world about topics that spark her interest and will do the same for you. Listen to more episodes of Kim Hill Wants To Know.Guest:Dame Linda Partridge, geneticistGo to this episode on rnz.co.nz for more details | — | ||||||
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Chart Positions
2 placements across 2 markets.
Chart Positions
2 placements across 2 markets.