Science Weekly
Alok Jha and the Guardian's science team bring you the best analysis and interviews from the worlds of science and technology.
Trophy hunting: can killing and conservation go hand in hand?
A series of super tusker elephant killings has sparked a bitter international battle over trophy hunting and its controversial, often-counterintuitive role in conservation. Biodiversity reporter Phoebe Weston speaks to Amy Dickman, professor of wildlife conservation at the University of Oxford, about why this debate has become so divisive, and the…
George Monbiot on the record jail terms given to Just Stop Oil activists
Last week, five supporters of the Just Stop Oil climate campaign who conspired to cause gridlock on London’s orbital motorway were sentenced to lengthy jail terms by a judge who told them they had ‘crossed the line from concerned campaigner to fanatic’. Columnist and campaigner George Monbiot tells Ian Sample…
Is there any point in taking multivitamins?
Multivitamins are cheap, convenient, and provide a little bit of reassurance if our diet isn’t quite as healthy as we’d like. But a recent study of nearly 400,000 people spanning 20 years found they didn’t help users live longer, and in fact appeared to show a 4% increased mortality risk…
Can the climate survive AI’s thirst for energy?
Artificial intelligence companies have lofty ambitions for what the technology could achieve, from curing diseases to eliminating poverty. But the energy required to power these innovations is threatening critical environmental targets. Madeleine Finlay hears from the Guardian’s energy correspondent, Jillian Ambrose, and UK technology editor, Alex Hern, to find out…
‘Lesbian’ seagulls and ‘gay’ rams: the endless sexual diversity of nature
Same-sex sexual behaviours have been reported in a wide variety of species, and a new study suggests that, although animal scientists widely observe it, they seldom publish about same-sex sexual behaviour in primates and other mammals. To find out why and to hear about some of the examples of sexual…
ZOE and personalised nutrition: does the evidence on glucose tracking add up?
You might have noticed that everyone has recently become a bit obsessed with blood sugar, or glucose. Wellness firms such as ZOE here in the UK – as well as Nutrisense, Levels and Signos – claim to offer insights into how our bodies process food based on monitoring our blood…
‘Spermageddon’: is male fertility really in crisis?
Recent research has suggested a global reproductive crisis could be in the offing, with researchers in Israel saying average sperm counts may have more than halved in the past 40 years. But a study published last month appears to call this narrative into question. Ian Sample is joined by the…
Caroline Lucas on politics, science and 14 years as the only Green MP
As she steps down as the Green party’s first, and so far only, MP, Caroline Lucas tells Madeleine Finlay what it’s been like as the sole Green voice in parliament for the past 14 years, her hopes for her party in Thursday’s UK general election, and what she plans to…
The surprising psychology behind extremism, and how politics is driving it
Psychologists usually expect ambivalence to be a driver of political apathy. But a new study appears to show a link between ambivalence in our views and the likelihood that we’ll support extremist actions. Madeleine Finlay speaks to the study’s co-author Richard Petty, professor of psychology at Ohio State University, to…
The infection that affects half of women and its link to antibiotic resistance
Anyone who has had a urinary tract infection knows how agonising they can be. Some infections go away on their own, but many need antibiotics. Beneath the surface of this very common infection lie many mysteries, unanswered questions, and unnecessary suffering. And it gets to the heart of the challenge…
A black hole awakens and why some people avoid Covid: 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 glimpse of a black hole awakening, to a new blood test that can detect Parkinson’s seven years before symptoms appear, and a study exploring how some people manage to…
What are the main UK parties promising on climate and is it enough?
Last week more than 400 scientists signed an open letter to political parties urging ambitious action on the environment to prevent making Britain and the world ‘more dangerous and insecure’. Now that the main parties’ manifestos have all been released, Ian Sample is joined by the global environment editor, Jon…
Science Weekly: Are cold and wet UK summers here to stay?
Here in the UK talking about the weather is already a national pastime, but this month the water-cooler weather chat has ramped up a notch as rain, grey skies and biting temperatures have put summer firmly on hold. Ian Sample talks to Matt Patterson, a postdoctoral research scientist in the…
Slaughter-free sausages: is lab-grown meat the future?
Ian Sample hears from Linda Geddes about her recent trip to the Netherlands to try cultivated meat sausages, courtesy of the company Meatable. Advocates say that cultivated meat could be the future of sustainable and ethical meat production. Linda explains how they’re made, how their carbon footprint compares with traditional…
Golden rice: why has it been banned and what happens now?
A court in the Philippines has banned the commercial growth of golden rice, a genetically modified rice which was created to help tackle vitamin A deficiency in developing countries. It’s just the latest twist in a long and controversial journey for this rice. Ian Sample hears from the Observer science…
Botanist Robin Wall Kimmerer: ‘The clock is ticking but the world will teach us what we need to do’
For a long time, western science and Indigenous knowledge have been seen as distinct ways of learning about the world. But as we plunge the planet deeper into environmental crises, it is becoming clear that it is time to pay attention to both. Bridging that gap has been the driving…
Election risks, safety summits and Scarlett Johansson: the week in AI
It’s been a busy week in the world of artificial intelligence. OpenAI found itself in hot water with Scarlett Johansson after launching its new chatbot Sky, drawing comparisons to the Hollywood star’s character in the sci-fi film Her. In South Korea the second global AI summit took place, and a…
Concrete without CO2: can our biggest building material go green?
Concrete is strong and durable – which is why it’s the basis for so much of our infrastructure. It’s also terrible for the planet, due to one key ingredient: cement, which is responsible for almost 90% of concrete emissions. Researchers have now found a way to recover old cement while…
Why is air turbulence getting worse?
On Tuesday a British man died and several others were injured when their plane encountered severe turbulence between London and Singapore. And it looks like this kind of turbulence is something we’ll have to get used to. Last year a study found severe clear-air turbulence had increased by 55% between…
In their prime: how trillions of cicadas pop up right on time
Right now, across much of the midwestern and eastern US, trillions of cicadas are crawling out from the soil. And this year is extra special, because two broods are erupting from the ground at once. The first brood hasn’t been seen for 13 years, the other for 17 years and…