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Science Weekly

Science Weekly

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

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What could a severe solar storm do to Earth, and are we prepared?

The sun is currently ramping up to hit the peak of its 11-year activity cycle. In the past few days, powerful solar eruptions have sent a stream of particles towards Earth which are set to produce spectacular auroras in both hemispheres. But these kinds of geomagnetic storms can also have less appealing consequences. Madeleine Finlay speaks to Dr Lisa Upton, a solar scientist at the Southwest Research Institute, about how the mysterious inner workings of the sun create space weather, how solar events can significantly disrupt Earth?s infrastructure, and whether we are prepared for the worst-case scenario. Help support our independent journalism at theguardian.com/sciencepod
2024-03-26
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Havana syndrome: will we ever understand what happened?

In late 2016, US officials in Cuba?s capital began experiencing a mysterious and often debilitating set of symptoms that came to be known as Havana syndrome. As two new studies into the condition are published, Ian Sample speaks to the Guardian?s world affairs editor, Julian Borger, who has been following the story, and to the consultant neurologist Prof Jon Stone, about what could be behind the condition. Help support our independent journalism at theguardian.com/sciencepod
2024-03-21
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Should forests have rights?

A growing movement of ecologists, lawyers and artists is arguing that nature should have legal rights. By recognising the rights of ecosystems and other species, advocates hope that they can gain better protection. Madeleine Finlay speaks to the Guardian?s global environment editor, Jonathan Watts, about where this movement has come from and why the UK government has dismissed the concept, and hears from Cesar Rodriguez-Garavito of NYU School of Law about how he is finding creative ways to give rights to nature. Help support our independent journalism at theguardian.com/sciencepod
2024-03-19
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A waterworld with a boiling ocean and the end of dark matter? The week in science

Ian Sample and science correspondent Hannah Devlin discuss some of the science stories that have made headlines this week, from a new theory challenging the existence of dark matter to an alarming study about the possible impact of microplastics on our health and a glimpse of a ?waterworld with a boiling ocean? deep in space. Help support our independent journalism at theguardian.com/sciencepod
2024-03-14
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Why do we lose our hair as we age, and what can we do about it? ? podcast

For some people, going bald or experiencing thinning hair can have a significant impact on mental wellbeing and self confidence. Madeleine Finlay speaks to Rudi Zygadlo about how it affected him and what he eventually did about it, and to consultant dermatologist and hair specialist Dr Sharon Wong about what exactly is going on when our hair thins, which treatments are available to help, and what we can expect from new technologies in the pipeline. Help support our independent journalism at theguardian.com/sciencepod
2024-03-12
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What?s behind the rapid rise of cancer in the under-50s?

Ian Sample speaks to the Guardian?s health editor, Andrew Gregory, about the worrying global rise in cancers in under-50s, and hears from Yin Cao, an associate professor in surgery and medicine at Washington University in St Louis, who is part of a team conducting a huge study into why young people are developing bowel cancer at record rates. Help support our independent journalism at theguardian.com/sciencepod
2024-03-07
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Classic older child? What the science says about birth order and personality

We all know the cliches about older siblings being responsible, younger ones being creative, and middle children being peacemakers. But is there any evidence our position in the family has an impact on our personality? Madeleine Finlay meets Dr Julia Rohrer, a personality psychologist at the University of Leipzig, to unpick the science behind our intuition about birth order. Help support our independent journalism at theguardian.com/sciencepod
2024-03-05
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The Guardian?s new podcast series about AI: Black Box ? prologue

We wanted to bring you this episode from our new series, Black Box. In it, Michael Safi explores seven stories and the thread that ties them together: artificial intelligence. In this prologue, Hannah (not her real name) has met Noah and he has changed her life for the better. So why does she have concerns about him? If you like what you hear, make sure to search and subscribe to Black Box, with new episodes every Monday and Thursday.. Help support our independent journalism at theguardian.com/sciencepod
2024-03-02
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The debilitating impact of tinnitus, and how a new app could help

It?s thought that about 15% of us are affected by tinnitus, and despite its potentially debilitating impact on mental health and quality of life, there isn?t any cure for the condition. Madeleine Finlay speaks to John, who has used CBT techniques to learn to live well with his tinnitus, and Dr Lucy Handscomb, a tinnitus researcher who is involved in trialling a new app that could hold promise for sufferers.. Help support our independent journalism at theguardian.com/sciencepod
2024-02-29
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How green are electric cars?

Electric cars might seem like a no-brainer on a warming planet, but there are plenty of people who remain sceptical about everything from their battery life to their carbon impact and the environmental and human rights costs of their parts. Madeleine Finlay consults Auke Hoekstra, known as the internet?s ?EV debunker in chief?, to unpick the myths, realities and grey areas surrounding electric cars. Help support our independent journalism at theguardian.com/sciencepod
2024-02-27
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Mistakes, fakes, and a giant rat penis: why are so many science papers being retracted?

A record 10,000 research papers were retracted in 2023. To find out what?s driving this trend, Ian Sample speaks to Ivan Oransky, whose organisation Retraction Watch has been monitoring the growing numbers of retractions for more than a decade, and hears from blogger Sholto David, who recently made headlines when he spotted mistakes in research from a leading US cancer institute.. Help support our independent journalism at theguardian.com/sciencepod
2024-02-22
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Nitazenes and xylazine: what?s behind the rise of dangerous synthetic drugs?

Social affairs correspondent Robert Booth tells Madeleine Finlay why a class of synthetic opioids called nitazenes, first developed in the 1950s, is leading to a worrying number of fatal overdoses in the UK. And she hears from toxicology and addiction specialist Dr Joseph D?Orazio about a tranquilliser called xylazine that has been showing up in alarming volumes in the US illegal drug supply and is now starting to appear in toxicology reports in the UK. Help support our independent journalism at theguardian.com/sciencepod
2024-02-20
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What apes can tell us about the origins of teasing

We all know people who find it hilarious to prod and poke, pinch and tickle, all in the name of fun. But are humans the only ones who like to tease each other? Or are other animals in on the act? Ian Sample talks to Prof Erica Cartmill about her work on apes and teasing and asks, given how annoying teasing is, why do apes, and humans, do it?. Help support our independent journalism at theguardian.com/sciencepod
2024-02-15
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Retinol, acids and serums for kids? A dermatologist?s guide to age appropriate skincare

Last month the British Association of Dermatologists warned that children as young as eight years old were using potentially damaging anti-ageing skin care products. Madeleine Finlay speaks to consultant dermatologist Dr Emma Wedgeworth about where this trend has come from, what damage these products might be causing to young skin and how we can all look after our skin without spending too much time and money. Help support our independent journalism at theguardian.com/sciencepod
2024-02-13
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Why are we still waiting for a male contraceptive pill?

Despite research into a male contraceptive pill starting around the same time as its female counterpart, no product has ever made it to market. But that could soon change, with a new non-hormonal male pill entering human trials in the UK late last year. Ian Sample speaks to bioethicist Prof Lisa Campo-Engelstein of the University of Texas and Prof Chris Barratt from the University of Dundee about why male contraceptives have been so difficult to develop, and what kind of options are in the pipeline. Help support our independent journalism at theguardian.com/sciencepod
2024-02-08
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What happens now bird flu has reached the Antarctic?

The moment scientists had been dreading arrived late last year, when H5N1, or bird flu, was found for the first time in the Antarctic. Last week a king penguin on the island of South Georgia became the first in the region to be suspected to have died from the disease. The Guardian?s biodiversity reporter, Phoebe Weston, tells Ian Sample why researchers have said the spread of bird flu through the Antarctic?s penguin colonies could signal ?one of the largest ecological disasters of modern times?. Help support our independent journalism at theguardian.com/sciencepod
2024-02-06
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A fasting prime minister and a mind-reading billionaire: the week in science

Ian Sample and science correspondent Hannah Devlin discuss the big science stories of the week ? from news that Elon Musk?s Neuralink has implanted its first chip into a human, to research suggesting Alzheimer?s can pass between humans in rare medical accidents, and the revelation that Rishi Sunak begins each week with a 36-hour fast. Help support our independent journalism at theguardian.com/sciencepod
2024-02-01
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Secrets of the microbiome: the skin

The trillions of microbes living on and inside the human body are an important part of who we are, from mediating all of our interactions with the environment to determining our cancer risk and influencing who we fall for. And scientists are only just beginning to decipher the species of bugs we share our lives with, and how they shape us. In the final part of this Science Weekly mini-series, Ian Sample meets Julie Thornton, academic director of the Centre for Skin Sciences and professor in cutaneous biology at the university of Bradford. Julie tells Ian how the skin microbiome varies across our bodies, how it helps with everything from wound healing to immunity, and how we can protect it from the disruptive impact of modern life.. Help support our independent journalism at theguardian.com/sciencepod
2024-01-30
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Secrets of the microbiome: the vagina

The trillions of microbes living on and inside the human body are an important part of who we are, from mediating all our interactions with the environment to determining our cancer risk and influencing who we fall for. And scientists are only just beginning to decipher the species of bug we share our lives with, and how they shape us. In the second of a three-part Science Weekly mini-series, Madeleine Finlay meets Ina Schuppe Koistinen, associate professor at the Karolinska Institutet in Stockholm, and author of the book Vulva: Facts, Myths and Life-Changing Insights. Ina explains what makes the vaginal microbiome special, why it could hold the key to understanding pregnancy complications, and how we can better care for and protect it.. Help support our independent journalism at theguardian.com/sciencepod
2024-01-25
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Secrets of the microbiome: the gut

The trillions of microbes living on and inside the human body are an important part of who we are, from mediating all of our interactions with the environment to determining our cancer risk and influencing who we fall for. And scientists are only just beginning to decipher the species of bugs we share our lives with, and how they shape us. In the first of a Science Weekly three-part mini-series, Ian Sample speaks to colorectal surgeon and researcher, James Kinross, about the miraculous world of our gut microbiome, how modern life is impacting it, and what we can do to look after it. Help support our independent journalism at theguardian.com/sciencepod
2024-01-23
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How to stop doomscrolling and reclaim your brain

If you?ve made a resolution to spend less time on your phone this year, help is at hand. The Guardian has launched a new newsletter, Reclaim your brain. Its co-writer and expert coach Catherine Price tells Madeleine Finlay how her own excessive phone use inspired her to investigate the science behind our relationships with our devices, and what we know about how to break the cycle. And Prof Barbara Sahakian of Cambridge University explains why many of us are drawn to looking at bad news on our phones, and what it?s doing to us. Help support our independent journalism at theguardian.com/sciencepod
2024-01-18
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Is guilt-free flying on the horizon?

In November, a plane powered by 100% ?sustainable? jet fuel took off from London to New York. It was hailed by some as a milestone in reducing the carbon footprint of air travel, which accounts for about 2.5% of global CO2 emissions. Could this be the start of a greener way to fly? Madeleine Finlay speaks to Guy Gratton, associate professor of aviation and the environment at Cranfield University, to find out if the future of aviation can ever truly be guilt-free.. Help support our independent journalism at theguardian.com/sciencepod
2024-01-16
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Our science predictions for 2024

Last year was a bumper year for science news, with the rise of weight-loss drugs such as Wegovy, record-high global temperatures, not to mention an attempted orca uprising. So what will this year bring? Ian Sample and science correspondent Hannah Devlin discuss the big stories likely to hit the headlines and share their predictions for 2024. And environment reporter Patrick Greenfield reveals his top climate stories for 2024. Help support our independent journalism at theguardian.com/sciencepod
2024-01-11
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What the science says about how to get active (and make it stick)

As parks and gyms fill with people hoping to make 2024 their year of fitness, Ian Sample speaks to Martin Gibala, professor of kinesiology at McMaster University in Canada, about how much exercise we should be doing, the benefits of interval training, and how to make a new regime stick. Help support our independent journalism at theguardian.com/sciencepod
2024-01-09
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Revisited: Weight of the world, the climate scientists who hold out hope

Science Weekly revisits episode three of this 2023 mini-series from Full Story. In the final part of this three-part series, the Australian climate scientists Lesley Hughes, Ove Høegh-Guldberg and Graeme Pearman take stock as they look back on their life?s work. How does it feel for them to carry this burden of knowledge? Could they have done more? And what hope do they hold for the future?. Help support our independent journalism at theguardian.com/sciencepod
2024-01-04
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Weight of the world revisited: the climate scientists who copped it

Science Weekly revisits episode two of this 2023 mini-series from Full Story. In part two of Weight of the world, three Australian climate scientists reveal the professional and personal toll of their predictions. Lesley Hughes tells us about the axing of Australia?s Climate Commission, a group tasked with educating the public about climate science and the need to cut carbon emissions; Graeme Pearman talks of the pushback from government and industry; and Ove Hoegh-Guldberg speaks of the personal attacks and death threats that followed his warnings. All three express their disbelief that meaningful action didn?t follow the science, with Pearman saying he was ?naive? to think it would. Help support our independent journalism at theguardian.com/sciencepod
2024-01-03
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Revisited: Weight of the world ? the climate scientists who saw the crisis coming

Science Weekly revisits episode one of this 2023 mini-series from Full Story. Pioneering Australian scientists Graeme Pearman, Lesley Hughes and Ove Hoegh-Guldberg saw the climate crisis coming. Pearman predicted the increase of carbon dioxide levels, Hughes foresaw the alarming number of species extinctions and Hoegh-Guldberg forecast the mass coral bleaching events we?re seeing today. All three went on to become some of the country?s most respected experts in their fields, travelling the globe, briefing leaders, and assuming the world would take action having heard their alarming findings. In part one of this three-part series, these climate change scientists reveal the moment they realised the planet was heading for certain catastrophe. What did they do when they found out? How did they think the world would respond? And how do they feel today, looking back on that moment of cognisance?. Help support our independent journalism at theguardian.com/sciencepod
2024-01-02
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Best of 2023, Killing the Skydancer: episode three, An Open Secret

In this special Age of Extinction mini-series from Science Weekly, which first aired in 2023, the Guardian?s biodiversity reporter, Phoebe Weston, explores the illegal killing of birds of prey on grouse moors, and asks why it is so difficult to solve these crimes. In the third and final episode, Phoebe finds out more about the pressures that drive people to commit raptor persecution, discovers how the police investigation into the case of Susie?s crushed chicks unfolded, and how Susie, the hen harrier, is doing now. Help support our independent journalism at theguardian.com/sciencepod
2023-12-28
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Best of 2023, Killing the Skydancer: episode two, The Perfect Crime

In this special Age of Extinction mini-series from Science Weekly, which first aired in August 2023, the Guardian?s biodiversity reporter, Phoebe Weston, explores the murky world of the illegal killing of birds of prey on grouse moors, and asks why it is so difficult to solve these crimes. In episode two, Phoebe speaks to the people trying to protect these rare birds but, as she digs deeper, she encounters a surprising silence around the killing of a hen harrier?s chicks. Help support our independent journalism at theguardian.com/sciencepod
2023-12-27
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Best of 2023: Killing the Skydancer episode one, Susie?s chicks

In this special Age of Extinction mini-series from Science Weekly, which first aired in August 2023, the Guardian?s biodiversity reporter, Phoebe Weston, explores the illegal killing of birds of prey on grouse moors and asks why it is so difficult to solve these crimes. In episode one, Phoebe hears about the case of Susie, a hen harrier whose chicks were killed while being monitored on camera. As she starts to investigate the case, she hears from conservationist Ruth Tingay about why hen harriers are targeted and finds out about the personal costs of campaigning on this issue. Help support our independent journalism at theguardian.com/sciencepod
2023-12-26
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All the buzz and no hangover? The next generation of alcohol-free drinks

What with Christmas parties and work drinks, this time of year can feel like one long hangover. But a new generation of alcohol-free alternatives is emerging which claim to offer the fun of alcohol without the painful morning-after. Madeleine Finlay and Ian Sample are joined by science correspondent Hannah Devlin to sample some of these drinks and interrogate the science behind them. Help support our independent journalism at theguardian.com/sciencepod
2023-12-21
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Can machines ever be like us? Prof Michael Wooldridge on the future of AI

Prof Michael Wooldridge has been an AI researcher for more than 30 years, and in the year that AI was supercharged by ChatGPT, he is giving the Royal Institution?s Christmas lectures on the truth about AI. The Guardian science correspondent Nicola Davis sat down with him to find out how he sees AI evolving, what makes human intelligence unique, and what really keeps him awake at night. Madeleine Finlay hears from them both in this Science Weekly Christmas special.. Help support our independent journalism at theguardian.com/sciencepod
2023-12-19
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Cop28: what just happened?

A deal has been announced at Cop28 in Dubai, and depending who you talk to, it?s either a historic achievement or a weak and ineffectual agreement full of loopholes. Ian Sample speaks to the Guardian environment editor Damian Carrington, who explains what the deal on fossil fuels will mean in practice, how small island states have responded, and whether it will help us stay within the crucial limit of 1.5C of global heating. Help support our independent journalism at theguardian.com/sciencepod
2023-12-13
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The incredible world of animal perception, and what it can teach us

Ian Sample meets Ed Yong, who recently won 2023?s Royal Society book prize for An Immense World, which delves into the incredible world of animal senses. From colours and sounds beyond our perception, to the weird and wonderful ways that animals grow new ears and experience smell, Ed explains why understanding how animals perceive the world can transform our own experience of life on Earth. Help support our independent journalism at theguardian.com/sciencepod
2023-12-12
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All the drama from the first week of Cop28

Madeleine Finlay hears from the biodiversity and environment reporter Patrick Greenfield, who is reporting for the Guardian from Cop28 in Dubai. He describes the rollercoaster first week of highs and lows, which included an important agreement on loss and damage and a tetchy press conference from the summit president, Sultan Al Jaber. He also sets out what is still on the table as the second week of negotiations gets under way ? This episode was amended on 7 December to reflect the fact that Sheikh Ahmed did not want to be interviewed. Help support our independent journalism at theguardian.com/sciencepod
2023-12-07
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Why are we still struggling to get contraception right?

As the pill becomes available over the counter and free of charge in England, Madeleine Finlay talks to science correspondent Nicola Davis about the problems women in the UK face in getting access to appropriate contraception, and how unwanted side-effects and lack of support have led to a rise in the popularity of fertility awareness-based methods. She also hears from Katie about her own journey trying to find the right contraception for her body. Help support our independent journalism at theguardian.com/sciencepod
2023-12-05
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Everything you need to know about Cop28 as the summit begins

Every year the world?s leaders gather for the UN climate change conference, and after a year of record temperatures, this year?s summit has been called the most vital yet. As Cop28 begins in Dubai, Ian Sample hears from Guardian environment editor and resident Cop expert Fiona Harvey. She explains why this summit proved controversial before it even began, what the main talking points will be, and how countries can still collaborate to meet the goals set out in 2015?s Paris agreement. Help support our independent journalism at theguardian.com/sciencepod
2023-11-30
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Weight of the world ? the climate scientists who saw the crisis coming

Science Weekly brings you episode one of a new mini-series from Full Story. Pioneering Australian scientists Graeme Pearman, Lesley Hughes and Ove Hoegh-Guldberg saw the climate crisis coming. Pearman predicted the increase of carbon dioxide levels, Hughes foresaw the alarming number of species extinctions and Hoegh-Guldberg forecast the mass coral bleaching events we?re seeing today. All three went on to become some of the country?s most respected experts in their fields, travelling the globe, briefing leaders, and assuming the world would take action having heard their alarming findings. In part one of this three-part series, these climate scientists reveal the moment they realised the planet was heading for catastrophe. What did they do when they found out? How did they think the world would respond? And how do they feel today, looking back on that moment of cognisance?. Help support our independent journalism at theguardian.com/sciencepod
2023-11-28
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What have we learned from the James Webb space telescope so far?

Madeleine Finlay sits down with science correspondent Hannah Devlin to discuss the amazing discoveries the James Webb space telescope has made in the year since it became operational. From planets that rain sand, to distant galaxies, Hannah explains how some of these discoveries could fundamentally change our understanding of the universe. Help support our independent journalism at theguardian.com/sciencepod
2023-11-23
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Superyachts and private jets: the carbon impact of the ?polluter elite?

A new report from Oxfam has found that the extravagant carbon footprint of the 0.1% ? from superyachts, private jets and mansions to space flights and doomsday bunkers ? is 77 times higher than the upper level needed for global warming to peak at 1.5C. Madeleine Finlay hears from the Guardian?s Europe environment correspondent Ajit Niranjan, and from wealth correspondent Rupert Neate, about the highly polluting transport habits of the ultra-wealthy. Help support our independent journalism at theguardian.com/sciencepod
2023-11-21
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The mysteries of volcanoes: what?s going on beneath the ground in Iceland?

As Iceland braces for a volcanic eruption, Madeleine Finlay hears from volcanologist Helga Torfadottir about how the country is preparing, and why this is happening now. She also speaks to Cambridge professor of volcanology Clive Oppenheimer about how scientists predict volcanic activity, and what it feels like to stare into a smouldering volcanic crater. Help support our independent journalism at theguardian.com/sciencepod
2023-11-16
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CBD: what?s the science behind the wellness trend?

Last month the UK?s Food Standards Authority slashed the recommended safe daily intake of cannabidiol (CBD) from 70mg to 10mg. An estimated one in 10 people in the UK have used products containing CBD, and many users believe it can help with ailments such as insomnia, anxiety and pain. But is there any evidence for the supposed benefits, and what?s behind the FSA?s decision? Ian Sample talks to Dr Will Lawn of Kings College University, who has studied the health effects of CBD, to find out. Help support our independent journalism at theguardian.com/sciencepod
2023-11-14
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Why is the Amazon rainforest drying up?

Ian Sample talks to Guardian global environment editor Jon Watts about the withering drought currently devastating the Amazon rainforest. Jon explains the complex mix of factors that are driving the drought, and considers whether it might be a catalyst for more concerted climate action in Brazil and beyond. Help support our independent journalism at theguardian.com/sciencepod
2023-11-09
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Understanding the science of addiction

After Matthew Perry?s death was announced, a clip of the actor debating the science of addiction on the BBC?s Newsnight programme went viral. To find out where we?ve got to in our understanding of addiction, Ian Sample talks to Dr Nora Volkow, director of the US National Institute on Drug Abuse. She explains how brain imaging has advanced our understanding of this chronic disease. Help support our independent journalism at theguardian.com/sciencepod
2023-11-07
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Nuclear fusion, new drugs, better batteries: how AI will transform science

As the UK hosts the first global AI safety summit, Guardian science editor Ian Sample joins Madeleine Finlay to look on the bright side and consider some of the huge benefits AI could bring to science. Madeleine also hears from Prof Mihaela van der Schaar, an expert in machine learning in medicine, about how she predicts AI will transform patient care. Help support our independent journalism at theguardian.com/sciencepod
2023-11-02
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What could near-death experiences teach us about life, death and consciousness?

Seeing a bright light, floating above your body, being guided by an angel. All of these are common elements of reported near-death experiences, but what?s really going on? Ian Sample meets Sam Parnia, an intensive care doctor and associate professor at NYU Grossman school of medicine in New York City who has spent his career exploring the boundary between life and death. He tells Ian how he believes these experiences can be explained and what medicine can learn from them. Help support our independent journalism at theguardian.com/sciencepod
2023-10-31
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Black holes, but backwards: unlocking the mysteries of white holes

Ian Sample meets the Italian physicist Carlo Rovelli to find out about his cutting-edge research into white holes. A white hole is essentially a time-reversed black hole: a region of spacetime where matter spontaneously appears and explodes outwards. At the moment they are hypothetical objects, so Rovelli explains why he thinks they are worth exploring and reveals how they could explain one of the greatest mysteries of physics. Help support our independent journalism at theguardian.com/sciencepod
2023-10-26
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?We?ve lost control?: what happens when the west Antarctic ice sheet melts?

Madeleine Finlay hears from environment editor Damian Carrington about a new study by the British Antarctic Survey, which shows Antarctic ice may be melting even faster than we thought. He also reflects on the life and career of former environment editor John Vidal, whose death was announced last week. Help support our independent journalism at theguardian.com/sciencepod
2023-10-24
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Could AI help diagnose schizophrenia?

Madeleine Finlay meets neuroscientist and psychiatrist Matthew Nour, whose research looks at how artificial intelligence could help doctors and scientists bring precision to diagnosis of psychiatric conditions. He describes his latest study looking at patients with schizophrenia, and explains how he thinks large language models such as ChatGPT could one day be used in the clinic. Help support our independent journalism at theguardian.com/sciencepod
2023-10-19
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Scarier than lions: how fear of ?super predator? humans is shaping the animal kingdom

Ian Sample meets the conservation biologist Liana Zanette, whose recently published research demonstrates that humans are now the super predator, inciting more fear in wild animals than even lions. She explains the ramifications of this knowledge for conservation techniques and the protection of endangered animals. Help support our independent journalism at theguardian.com/sciencepod
2023-10-17
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