PODCAST

Science Weekly

The Guardian

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

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All Episodes

00:12:03

Does China need to rethink its zero-Covid policy?

Science Weekly ·

2022/04/14

To slow down a surge in Covid cases, last week Chinese authorities put Shanghai into lockdown. But with a population of 26 million there have been difficulties providing residents with basic necessities, and videos have appeared on social media showing protests and scrambles over food supplies. Now, authorities have begun easing the lockdown in some areas, despite reporting a record of more than 25,000 new Covid cases. Madeleine Finlay talks to the Guardian’s China affairs correspondent, Vincent Ni,

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00:14:59

Why are climate and conservation scientists taking to...

Science Weekly ·

2022/04/12

Last week’s IPCC report gives the world just 30 months to get greenhouse gas emissions falling. Beyond that, we’ll have missed our chance of limiting global heating to 1.5C and protecting our planet from the most serious impacts of climate change. As the window closes, some scientists feel like writing reports and publishing papers is no longer enough, and researchers around the world are leaving their desks and labs to take action on the streets. Madeleine Finlay meets scientists protesting at

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00:12:51

Why has the UK (finally) expanded its Covid symptoms...

Science Weekly ·

2022/04/07

This week, the UK expanded its official Covid symptom list to 12 symptoms including sore throat, loss of appetite, and a blocked or runny nose. British scientists have long called for a broadening of the list, but the change comes at a time when free rapid tests have been scrapped, and the UK is seeing its highest ever levels of infection, according the the Office for National Statistics. Madeleine Finlay speaks to science correspondent Linda Geddes about why this has happened now, what symptoms

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00:14:52

Why is England keeping the abortion ‘pills by post’...

Science Weekly ·

2022/04/05

At the start of the Covid-19 pandemic, Great Britain brought in emergency legal orders to allow a ‘pills by post’ abortion service. For abortions within the first 10 weeks, women were able to take the two tablets needed to end a pregnancy in the privacy of their own home rather than having to take the first at a clinic or hospital. The scheme was due to be scrapped in September 2022, but last week MPs voted to keep it in England. Wales will also be making it permanent. Madeleine Finlay spoke to Dr

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00:11:38

Can the science of PTSD help soldiers in Ukraine?

Science Weekly ·

2022/03/31

The war in Ukraine, like other conflicts around the world, will mean millions of people going through horrific and traumatic events. Some may go on to develop post-traumatic stress disorder, or PTSD, experiencing psychological distress for months or even years afterwards. Ian Sample speaks to clinical psychologist Jennifer Wild about what happens in the body and brain when someone gets PTSD, why some people may be more susceptible to developing it than others, and how understanding the underlying

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00:14:23

COP15: is 2022 the year we save biodiversity?

Science Weekly ·

2022/03/29

As human activities like agricultural production, mining and pollution continue to drive the so-called sixth mass extinction, government negotiators from around the world are currently meeting in Geneva to try to protect the planet’s biodiversity. At stake is an ambitious Paris-style agreement for nature, the final version of which will be negotiated at the COP15 summit in Kunming, China, in August. Madeleine Finlay speaks to reporter Patrick Greenfield from Geneva about what’s being discussed, how

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00:12:49

Two years on, what have we learned about lockdowns?

Science Weekly ·

2022/03/24

Over the past two years, countries around the world have shut down their societies in last-ditch efforts to contain the pandemic. Some, like China, have enforced strict lockdowns as part of a zero Covid strategy. Others have ordered people to stay at home to flatten the curve of infections and buy precious time. But since they first began, what have we learned about how well lockdowns work? Ian Sample speaks to epidemiologist Prof Adam Kucharski about the effectiveness of different approaches, and

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00:14:04

As the energy crisis bites, could fracking ever...

Science Weekly ·

2022/03/22

The average family’s energy bill will soon be increasing by 54% in the UK, amid soaring energy prices caused in part by Covid-19 lockdowns and Vladimir Putin’s decision to reduce gas exports prior to Russia’s invasion of Ukraine. In response, the UK government is considering all its options to secure its energy supplies and dampen costs – including fracking. But could fracking really provide any kind of solution? Anand Jagatia speaks to the Guardian’s environment editor, Damian Carrington, about how

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00:11:54

Covid cases are rising again – how worried should we be?

Science Weekly ·

2022/03/17

After falling for the past few weeks, the number of Covid cases in the UK is increasing once more. Since the easing of restrictions, scientists have been expecting an upwards trend in infections – but could other factors also be at work? Guardian science correspondent Nicola Davis speaks to Anand Jagatia about the latest coronavirus data and what it could mean.. Help support our independent journalism at <a

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00:11:10

10% of the world’s wheat comes from Ukraine - will...

Science Weekly ·

2022/03/15

As the world watches oil and gas prices soar – the next big shock could hit the dinner table. Collectively, Russia and Ukraine are responsible for more than a quarter of global wheat exports and for around 80% of the world’s supply of sunflower oil. Russia — along with ally, Belarus — is also a huge source of fertiliser, accounting for around 15% globally. The war in Ukraine will undoubtedly have a major impact on its agricultural production and exports, putting even more pressure on a system

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00:13:34

How come some people haven’t had Covid yet?

Science Weekly ·

2022/03/10

Although several countries around the world continue to have high rates of Covid-19 infections, including the UK and US, many of their citizens are yet to be infected with the Sars-Cov-2 virus. This includes countless individuals who have knowingly been exposed, often multiple times, but have still never had a positive test. Madeleine Finlay speaks to Linda Geddes about how scientists are trying to solve the mystery of why some people seemingly don’t catch Covid, and what could be behind this

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00:13:06

Is Russia losing the information war?

Science Weekly ·

2022/03/08

Since Vladimir Putin’s bizarre televised address announcing a ‘military operation’, the Russia-Ukraine war has been rife with disinformation and propaganda. Last week, Facebook and Instagram blocked access to the Russian state media outlets RT and Sputnik across the European Union. In retaliation, Russia completely blocked access to Facebook and restricted access to Twitter. At the same time, misattributed videos purportedly showing nuclear weapons and Ukrainian fighter jets have been going viral

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00:14:27

What have fossil fuels got to do with the invasion of...

Science Weekly ·

2022/03/03

As Russia continues its invasion of Ukraine, gas prices remain high around the world. Europe is dependent on Russia for about 40% of its natural gas supplies, and despite the expansion of renewable energy over the past two decades, that dependency is increasing as countries shift to gas from dirtier coal. Putin’s attack on Ukraine has put this reliance into sharp focus as Europe considers how to respond. Madeleine Finlay speaks to our environment correspondent Fiona Harvey about how Putin has

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00:15:16

Act now: understanding the latest warnings in the...

Science Weekly ·

2022/03/01

A new report from the Intergovernmental Panel on Climate Change (IPCC) has given humanity a stark warning: without immediate and rapid action on climate breakdown, a liveable and sustainable future for all is at risk. The assessment, which is based on 34,000 studies, documents the ‘widespread and pervasive’ impacts on people and the natural world, and analyses how humanity can adapt. It also offers a small piece of good news – a liveable future remains within grasp. But the window of opportunity for

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00:13:11

Covid-19: what’s the evidence for vaccinating kids?

Science Weekly ·

2022/02/24

When the announcement came last week that all children aged five to 11 in England will be offered a Covid vaccine, emphasis was placed on parental decision-making. But with factors to consider including disease severity, transmission, long Covid and vaccine side-effects, for many parents and guardians this may not be an easy choice. Ian Sample speaks to Prof Adam Finn about how the evidence stacks up, and what parents should be thinking about when deciding whether to vaccinate their five- to

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00:14:13

Will storms like Eunice become the norm?

Science Weekly ·

2022/02/22

Over the past week, the UK has been hit with three storms: Dudley, Eunice and Franklin. With high winds and heavy rain, they have brought death and injury, caused extensive damage to trees and infrastructure and stopped transport across the country. Madeleine Finlay speaks to Dr Fredi Otto about how rare these weather events are, and whether the climate crisis could bring us more frequent and intense storms in the future. Help support our independent journalism at <a

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00:12:14

Will Silicon Valley help us live to 200 and beyond?

Science Weekly ·

2022/02/17

While Benjamin Franklin’s famous quote about death and taxes remains true for most, the same might not be said for some of the world’s billionaires. And their efforts to extend life are under way. Most recently, a Silicon Valley start-up called Altos Labs signed up a dream team of scientists, including numerous Nobel laureates, with an aim to rejuvenate human cells. Ian Sample speaks to Prof Janet Lord about the science of ageing, extending our health as well as our lifespans, and how old we could

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00:13:46

What will ‘living with Covid’ actually mean?

Science Weekly ·

2022/02/15

Last week Boris Johnson announced that all Covid regulations in England, including the requirement to isolate after testing positive, were due to be abolished on 24 February. Whilst the Omicron variant has caused fewer hospitalisations and deaths than many predicted, some scientists say the changes may be going too far, too soon. Madeleine Finlay gets the Guardian science correspondent Hannah Devlin’s view on whether there’s scientific evidence backing up this decision and what the changes could

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00:14:13

Why does Elon Musk want to read your mind?

Science Weekly ·

2022/02/10

A few weeks ago, Elon Musk’s company Neuralink posted a job advert recruiting for a ‘clinical trial director’ to run tests of their brain-computer interface technology in humans. Neuralink’s initial aim is to implant chips in the brain that would allow people with severe spinal cord injuries to walk again. But, Musk himself has said that he believes this technology could one day be used to digitally store and replay memories. Madeleine Finlay speaks to Prof Andrew Jackson about how brain-computer

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00:10:50

How worried should we be about the new Omicron...

Science Weekly ·

2022/02/08

Late in November, the World Health Organization designated the Covid variant B.1.1.529, with its many mutations, as a variant of concern. Dubbed Omicron, within weeks it had rapidly spread across the globe and become the dominant variant. But not far behind has been its even more transmissible cousin, BA.2. Initially taking off in Denmark and India, BA.2 is now making headway in several countries around the world, including the US and UK. Ian Sample speaks to Prof Nick Loman about how worried we

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