PODCAST

Science Weekly

The Guardian

Twice a week, the Guardian brings you the latest science and environment news

science

All Episodes

00:24:28

How to save the Amazon part two: the magic and mystery

Science Weekly ·

2025/06/11

As a companion to the Guardian’s Missing in the Amazon, Jon Watts, global environment editor, goes in search of answers to the question Dom Phillips was investigating when he was murdered: how can we save the Amazon? In episode two, Jon meets the people trying to make sure the rainforest is worth more standing than cut down – from a government minister attempting to establish Brazil’s ‘bioeconomy’ to a startup founder creating superfood supplements and a scientist organising night-time tours hunting

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00:28:03

How to save the Amazon part one: the stakes

Science Weekly ·

2025/06/10

As a companion to the Guardian’s Missing in the Amazon, the global environment editor Jon Watts goes in search of answers to the question Dom Phillips was investigating when he was murdered: how can we save the Amazon? In episode one of a three-part series, Watts explores what’s at stake if we fail to act in time. He hears about the crucial role of the rainforest for South America and the global climate, and looks back at how cattle ranching came to dominate and destroy huge swathes of the forest –

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00:26:50

Missing in the Amazon: the disappearance – episode 1

Science Weekly ·

2025/06/06

The British journalist Dom Phillips and the Brazilian indigenous defender Bruno Pereira vanished three years ago while on a reporting trip near Brazil’s remote Javari valley. The Guardian’s Latin America correspondent, Tom Phillips, investigates what happened to them in a six-part podcast series. Find episode 2 and all future episodes by searching for Missing in the Amazon. Help support our independent journalism at <a

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00:14:32

Into the photic zone: does a darkening ocean threaten...

Science Weekly ·

2025/06/05

Vast areas of the ocean are getting darker, according to research based on satellite imaging. Marine ecosystems are governed by faint light changes – from mass nightly migrations to coral spawning cycles – so what happens when that light begins to fade? Ian Sample talks to Prof Tim Smyth from the Plymouth Marine Laboratory about why this darkening is happening and how life in the ‘photic zone’ – the sunlit upper layer that is home to 90% of marine organisms – could be profoundly affected Planet’s

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00:16:24

The incredible world of animal medicine

Science Weekly ·

2025/06/03

Ian Sample meets Jaap de Roode, professor of biology at Emory University in Atlanta, and author of the book Doctors by Nature: How Ants, Apes and Other Animals Heal Themselves. De Roode explains how a chance discovery got him interested in animal medicine, the amazing ways that creatures use toxins to fight parasites and pathogens, and what humans have learnt about medicine from the animal world. Help support our independent journalism at <a

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00:18:08

Your microbiome questions answered: part two

Science Weekly ·

2025/05/29

Ian Sample is joined by Dr James Kinross, colorectal surgeon and author of the book Dark Matter: The New Science of the Microbiome, to answer all your questions about gut health. In episode two, Kinross explains what else, beyond antibiotics, can damage our microbiome, how we can start to repair it, and gives his top tips for keeping our gut microbes happy. Help support our independent journalism at <a

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00:17:38

Your microbiome questions answered: part one

Science Weekly ·

2025/05/27

Ian Sample is joined by James Kinross, colorectal surgeon and author of the book Dark Matter: The New Science of the Microbiome, to answer all your questions about gut health. In episode one, James explains how the gut microbiome gets set up, how it impacts our early development, and the effect antibiotics can have on our microbes. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>

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00:16:55

The extraordinary promise of gene editing

Science Weekly ·

2025/05/22

Doctors in the US have become the first to treat a baby with a customised gene-editing therapy after diagnosing the child with a severe genetic disorder that kills about half of those affected in early infancy. Ian Sample explains to Madeleine Finlay how this new therapy works and how it paves the way for even more complex gene editing techniques. David Liu, a professor at the Broad Institute of MIT and Harvard and the inventor of these therapies, also describes the barriers that could prevent them

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00:19:27

The latest twist in a Canadian medical mystery

Science Weekly ·

2025/05/20

In March 2021, the Toronto-based reporter Leyland Cecco heard about a memo sent by New Brunswick health officials that warned about a possible unknown neurological syndrome thought to be affecting about 40 people. Since then the story has taken many twists and turns, most recently with a peer-reviewed study that concludes there is no mystery illness after all. Cecco tells Madeleine Finlay about the devastating symptoms that patients experienced, and why the research is unlikely to resolve the

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00:14:20

Is it time to try geoengineering?

Science Weekly ·

2025/05/15

Geoengineering, the controversial set of techniques that aim to deliberately alter the Earth’s climate system, may be inching a step closer to reality with the announcement that UK scientists will be conducting real-world experiments in the coming years. To understand what’s happening, Ian Sample is joined by the Guardian environment editor Damian Carrington. Damian explains what the experiments will entail and why scientists are so divided on whether pursuing this research is a good idea. Help

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00:13:26

Have we got the appendix all wrong?

Science Weekly ·

2025/05/13

For a long time the appendix was considered disposable. After all, millions of people have theirs removed each year and go on to live healthy lives. But as Heather F Smith, a professor of anatomy at Midwestern University tells Ian Sample, researchers are increasingly understanding what this small worm-shaped organ may be bringing to the table in terms of our health. Smith explains how the appendix is linked to both our immune system development and gut health, and why she thinks an increasing

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00:21:22

Surviving 200 snake bites, decoding ancient scrolls...

Science Weekly ·

2025/05/08

Science correspondent Hannah Devlin joins Ian Sample to discuss three intriguing science stories from the week, from a global study that puts the UK third from bottom when it comes to flourishing, to a man who intentionally suffered more than 200 snake bites in the quest to find a universal antivenom and a breakthrough in the quest to understand the contents of the charred Herculaneum scrolls buried when Mount Vesuvius erupted. Help support our independent journalism at <a

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00:16:24

How old are we really? What a test can tell us about...

Science Weekly ·

2025/05/06

Direct to consumer tests that claim to tell us our biological – as opposed to chronological – age are getting a lot of attention, but what can they really tell us about our health? Science editor Ian Sample talks to Dr Brian H Chen, an epidemiologist at the California Pacific Medical Center Research Institute, who has conducted research into a variety of these tests called epigenetic clocks. He explains what exactly they are measuring and whether, once we have the results, there are any

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00:16:29

Why did Spain and Portugal go dark?

Science Weekly ·

2025/05/01

Authorities are still trying to understand what triggered the massive power outage that left the majority of the Iberian Peninsula without electricity on Monday. To understand what might have been at play, and whether there’s any truth to claims that renewable energy sources were to blame, Ian Sample hears from Guardian energy correspondent Jillian Ambrose. And Guardian European community affairs correspondent Ashifa Kassam explains what it was like to experience the blackout and how people reacted

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00:18:27

Why did Just Stop Oil just stop?

Science Weekly ·

2025/04/29

Just Stop Oil, the climate activism group behind motorway blockades, petrol station disruption and tomato soup attacks on major artworks, has disbanded after staging a final action in London this weekend. To find out why the group has decided to hang up the famous orange high-vis, Madeleine Finlay hears from our environment correspondent Damien Gayle who has been covering Just Stop Oil since its inception. He explains how policy wins and policing crackdowns combined to bring the movement to a close,

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00:20:43

Evidence of alien life, a clue about the rise of...

Science Weekly ·

2025/04/24

Madeleine Finlay and Ian Sample discuss three intriguing science stories from the week. From a hint at alien life on a distant planet to a clue in the search for answers over why colon cancer rates are rising in the under 50s, and news from scientists who claim to have found a colour no one has seen before. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>

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00:16:26

Is ‘de-extinction’ really possible?

Science Weekly ·

2025/04/22

The American biotech company Colossal Biosciences recently made headlines around the world with claims it had resurrected the dire wolf, an animal that went extinct at the end of the last ice age. But does what the company has done amount to ‘de-extinction’ or should we instead think of these pups as genetically modified versions of the grey wolves that exist today? Science correspondent Nicola Davis tells Madeleine Finlay about the process that created these wolves, how other companies are joining

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00:17:53

RFK Jr’s mixed messages on vaccines

Science Weekly ·

2025/04/17

As a measles outbreak expands across the US, comments by health secretary Robert F Kennedy Jr have come under scrutiny. Kennedy has said that the best way to prevent measles is to get vaccinated – but he has also caused alarm among paediatricians, vaccine experts and lawmakers by promoting vitamin A and nutrition as treatments for measles and questioning the safety testing of the MMR vaccine. He also recently announced a US-led scientific effort to establish the cause of what he terms the ‘autism

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00:19:43

What 40 years as Observer science editor has taught...

Science Weekly ·

2025/04/15

Robin McKie reflects on his 40 years as science editor for the Observer and tells Madeleine Finlay about the game-changing discoveries and scientific controversies that he’s reported on during that time. He describes how the discovery of the structure of DNA revolutionised science, what he learned about misinformation from the HIV/AIDS pandemic and why cold fusion and the millennium bug failed to live up to their hype.. Help support our independent journalism at <a

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00:15:54

Streams of medicines: how Switzerland cleaned up its act

Science Weekly ·

2025/04/10

Switzerland is leading the world in purifying its water of micropollutants, a concoction of chemicals often found in bodies of water that look crystal clear. They include common medicines like antidepressants and antihistamines, but have unknown and potentially damaging consequences for human and ecosystem health. In the second of a two-part series, Phoebe Weston travels to Geneva to find out how the country has transformed its rivers from sewage-filled health hazards to pristine swimming spots. She

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