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Our Changing World

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Our Changing World
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  • Voice of the Sea Ice 06 | Where to?
    Human-induced climate change is impacting Earth’s global systems, including ice melt in Antarctica. What is the world doing to combat it? Signed in 2016, the Paris Agreement is the current global plan to tackle it. Countries pledge different emission reduction targets and then produce their workings and homework about how they are going about it. Where does New Zealand fit in? Are we doing our bit as a nation? And should we be bothering with individual actions or is that simply a bait-and-switch tactic by those who want to delay real change?Guests:Eloise Gibson, RNZ climate correspondentDr Jess Berentson-Saw, Director of Narrative Research and Strategy, The Workshop Learn more:Read the article that accompanies this episode: Is New Zealand doing its bit in combating climate change?Read Eloise’s recent analysis about New Zealand’s international climate targets, or listen to this episode of The Detail.Eloise has also recently fact checked Winston Peters on climate accord, reported on our 2035 Paris Agreement target, and delved into the recent uptake of solar demand in New Zealand.The Climate Action Tracker website keeps tabs onthe targets and pledges of different countries and monitors whether they are on track to keep the world below 2 °C of warming (compared to pre-industrial temperatures).The Workshop have published a cheat sheet on ‘How to talk about climate change’.This series was made with travel support from the Antarctica New Zealand Community Engagement Programme.…Go to this episode on rnz.co.nz for more details
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  • Voice of the Sea Ice 05 | Changing times
    In February 2025, the world hit a new low for global sea ice extent. Arctic sea ice has been declining for several decades now, but Antarctic sea ice had been holding steady, until recently. With low summer sea ice extents for four years in a row, it appears that Earth’s warming has kicked Antarctic sea ice into a new regime. Claire Concannon speaks to scientists to understand what this means for Antarctica, what this means for us, and how they feel about it.Guests:Dr Natalie Robinson, NIWA Dr Jacqui Stuart, Victoria University of WellingtonDr Greg Leonard, University of OtagoDr Daniel Price, University of Canterbury and Kea AerospaceDr Inga Smith, University of Otago Dr Michelle LaRue, University of CanterburyLearn more:Read the article that accompanies this episode: A time of change for Antarctic sea ice.Read about the recent State of the Global Climate Report.The world’s biggest iceberg recently ran aground, but to get up close and personal, listen to the Voice of the Iceberg miniseries.The world is also experiencing ice loss from its glaciers. New Zealand’s glaciers have shrunk by 29% since 2000. Listen to The annual snowline survey to learn how our glaciers are monitored.This series was made with travel support from the Antarctica New Zealand Community Engagement Programme. 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
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  • Voice of the Sea Ice 04 | More life!
    Penguins that return to the ice in the middle of winter to lay their eggs. Seals that use cracks in the ice to keep their pups safe. And fish that have antifreeze proteins to survive in the icy cold waters... Antarctic life is tough, and full of surprises. Scientists are keen to piece together the Antarctic food web puzzle to better understand the interconnections, and to enable smart conservation decisions. Guests:Arek Aspinwall, University of CanterburyDr Michelle LaRue, University of CanterburyProfessor Steve Wing, University of OtagoLearn more:Read the article that accompanies this episode: How Antarctic seals and penguins rely on sea ice.Meet other seals and penguins with Peregrin Hyde on his journey to South Georgia Island as part of an Inspiring Explorers expedition.In ‘Best Journey in the World’ from the Voices from Antarctica series, Alison Ballance travelled to Cape Crozier with a team from NIWA studying the emperor penguins.This series was made with travel support from the Antarctica New Zealand Community Engagement Programme. 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
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  • Voice of the Sea Ice 03 | Life!
    What’s it like to live and work on the frozen ocean? A team of researchers is camping out on the sea ice to investigate the small critters that live on the bottom of the ice, and among the sloshy platelet ice layer just below it. From microalgae to krill, these tiny organisms hold up the big complex food web of Antarctica. Scientists are keen to understand these communities, and how they might shift as the sea ice cycle changes. Guests:Dr Natalie Robinson, NIWA Dr Jacqui Stuart, Victoria University of WellingtonDr Greg Leonard, University of OtagoLizzy Skelton, University of CanterburyDr Aimee van der Reis, University of AucklandSalvatore Campanile, Victoria University of WellingtonLearn more:Read the article that accompanies this episode: What lives in Antarctic sea ice?Dr Natalie Robinson spoke to The Detail in 2023 about the unprecedented sea ice conditions of that yearAlison Ballance's Voices from Antarctica series from 2020 explores what it’s like to live and work in Antarctica.This series was made with travel support from the Antarctica New Zealand Community Engagement Programme. 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
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  • Voice of the Sea Ice 02 | Antarctica's heartbeat
    Step out on the sea ice just outside New Zealand’s Scott Base with researchers studying the physics of its annual cycle. Each year a massive patch of ocean around Antarctica freezes and then melts again come summer – Antarctica’s heartbeat. In winter, the ice effectively more than doubles the size of this already massive continent, and it plays a huge role in controlling our planet’s climate.Guests:Dr Inga Smith, University of Otago Antonia Radlwimmer, University of OtagoProfessor Wolfgang Rack, University of Canterbury Learn more:Read the article that accompanies this episode, Monitoring and measuring Antarctica's heartbeat.Listen to Physics on Ice from 2021 with Emeritus Professor Pat Langhorne and Dr Inga Smith.Alison Ballance's Voices from Antarctica series from 2020 explores what it’s like to live and work in Antarctica.This series was made with travel support from the Antarctica New Zealand Community Engagement Programme. 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
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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.
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