Science Weekly

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 avoid Covid infection. Help support our independent journalism at theguardian.com/sciencepod

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 Watts, and the biodiversity reporter, Phoebe Weston, to find out what the manifestos have to say about nature and climate, and whether anyone is promising the level of action scientists are asking for. Help support our independent journalism at theguardian.com/sciencepod

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 Department of Meteorology at the University of Reading, to find out what’s causing the chilly weather, whether it’s really as unusual as it seems, and whether any sun is on the horizon for the UK. Help support our independent journalism at theguardian.com/sciencepod

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 meat and most importantly … what they taste like!. Help support our independent journalism at theguardian.com/sciencepod

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 and environment editor, Robin McKie, and from Glenn Stone, a research professor of environmental science at Sweet Briar College in Virginia who is also an anthropologist who has studied golden rice, about why it has taken so long for this potentially life-saving technology to reach the fields, if it is the silver bullet so many had hoped for, and whether this ban is really the end of the story. Help support our independent journalism at theguardian.com/sciencepod

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 force behind the career of the botanist and author of Braiding Sweetgrass, Robin Wall Kimmerer. She tells Madeleine Finlay what we can learn from the most ancient plants on Earth, why we need to cultivate gratitude for the natural world and what western science can learn from Indigenous knowledge. Help support our independent journalism at theguardian.com/sciencepod

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 report from the Alan Turing Institute explored how AI could influence elections. The Guardian’s UK technology editor, Alex Hern, tells Madeleine Finlay about what’s been happening. Help support our independent journalism at theguardian.com/sciencepod

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 also reducing the environmental impact of recycling steel. Madeleine Finlay speaks to Julian Allwood, professor of engineering and the environment at the University Of Cambridge, to find out how the process works, and what it could mean for the emissions generated by the construction industry. Help support our independent journalism at theguardian.com/sciencepod

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 1979 and 2020. Ian Sample speaks to Guy Gratton, associate professor of aviation and the environment at Cranfield University, to find out why this is happening, and whether there’s anything we can do to reverse the trend.. Help support our independent journalism at theguardian.com/sciencepod

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 the last time they emerged together Thomas Jefferson was president. Ian Sample speaks to entomologist Dr Gene Kritsky to find out what’s going on, why periodical cicadas emerge in cycles of prime numbers and how they keep time underground. Help support our independent journalism at theguardian.com/sciencepod