The Conversation Weekly

Geoengineering, the modification of the climate using technological interventions to reverse climate change, is a hugely divisive issue and we’ve decided to explore it in two episodes. In this first episode, we talk to scientists working on potential geoengineering technologies who argue the case for conducting research into these interventions. We speak to Shaun Fitzgerald, director of the Centre for Climate Repair at the University of Cambridge in the UK and Hugh Hunt, deputy director at the Centre, as well as Ben Kravitz, assistant professor of Earth and atmospheric sciences at Indiana University in the US. We're also joined by Stacy Morford, environment and climate editor at The Conversation in the US.Part two, out tomorrow, will focus on the case against a particular type of solar geoengineering called solar radiation management. This episode was written and produced by Katie Flood, Mend Mariwany and Gemma Ware, with sound design by Michelle Macklem. Our theme music is by Neeta Sarl. Full credits for this episode are available. Sign up here for a free daily newsletter from The Conversation.Further reading:What could we do to cool the Arctic, specifically?Climate engineering carries serious national security risks − countries facing extreme heat may try it anyway, and the world needs to be preparedBlocking out the sun won’t fix climate change – but it could buy us timeThe overshoot myth: you can’t keep burning fossil fuels and expect scientists of the future to get us back to 1.5°C

As we take a short production break in August, we're re-running an episode from 2023 about Neanderthals, and what new discoveries about their research could tell us about Homo Sapiens. For generations, Neanderthals have been a source of fascination for scientists. This species of ancient hominim inhabited the world for around 500,000 years until they suddenly disappeared 42,000 years ago. Today, the cause of their extinction remains a mystery.Archaeologist Ludovic Slimak at the University of Toulouse III, Paul Sabatier in France and his team have spent three decades excavating caves, studying ancient artefacts and delving into the world of Neanderthals and they've recently published provocative new findings. He tells us more about how Neanderthals lived, what happened to them and why their extinction might hold profound insights into the story of own species, Homo Sapiens.This episode was produced and written by Mend Mariwany with assistance from Katie Flood. The executive producer was Gemma Ware. Sound design was by Eloise Stevens and our theme music is by Neeta Sarl. Full credits for this episode are available here. A transcript is now available. Sign up here for a free daily newsletter from The Conversation.Further reading: Q&A with Ludovic Slimak, the archeologist who wants to rewrite the history of early humans in EuropeModern human DNA contains bits from all over the Neanderthal genome – except the Y chromosome. What happened?How Neanderthal language differed from modern human – they probably didn’t use metaphorsThe reconstruction of a 75,000-year-old Neanderthal woman’s face makes her look quite friendly – there’s a problem with thatWhy did modern humans replace the Neanderthals? The key might lie in our social structures

As The Conversation Weekly takes a short production break in August, we're bringing you a recent episode from our partners at the Borders and Belonging podcast about Japan’s evolving stance on immigration.With a rapidly ageing population and a shrinking workforce, Japan is facing an unprecedented crisis: by 2030, it's projected to have a shortfall of nearly 6.4 million workers. But despite Japan’s reputation for being closed off to migrants, there are signs that the country’s national immigration policy is starting to shift.Each episode of Borders and Belonging takes an in-depth look at a different regional migration issue and puts it into a global context. They do this through interviewing people with deep knowledge and experience of the region, including a couple of academic experts. The show is hosted by Maggie Perzyna, a researcher with the Canada Excellence Research Chair in Migration and integration programme at Toronto Metropolitan University in Canada.This episode features Nicholas A. R. Fraser, a senior research associate at Toronto Metropolitan University, Ito Peng, professor of sociology and public policy at the University of Toronto and Nana Oishi, associate professor in Japanese Studies at the University of Melbourne.Borders and Belonging is produced by CERC Migration in collaboration with Lead Podcasting. Sound design for this episode of The Conversation Weekly was by Michelle Macklem, with production by Mend Mariwany. Sign up for a free daily newsletter from The Conversation and to support what we do, please consider donating to The Conversation.

A chance to hear an episode from the first season of The Conversation's Curious Kids, a new podcast where kids from around the world get to ask their questions direct to experts. In this episode: do you think your dog is the cutest thing you've ever seen? Ten-year-old Grace does! But why? She joins our host Eloise and psychologist Deborah Wells from Queen's University Belfast to find out!You can read an article of this episode here or explore more articles from our Curious Kids series on The Conversation.The Conversation's Curious Kids podcast is published in partnership with FunKids, the UK's children's radio station. It's hosted and produced by Eloise. Gemma Ware is the executive producer. Subscribe to a free daily newsletter from The Conversation. To support what we do, please consider donating to The Conversation.

Momentum is growing against clauses in investment treaties that permit companies to sue a state if it decides to keep fossil fuels in the ground. In this episode, we revisit the secretive world of investor-state dispute settlement (ISDS), which some experts are worried could jeopardise global efforts to save the climate and cost countries billions of dollars in the process. Kyla Tienhaara, Canada research chair in economy and environment at Queen's University, Ontario in Canada, comes back on The Conversation Weekly to update us on the latest resistance to these clauses. Part of this episode was first aired in October 2022. You can listen to the original episode here. It was produced by Gemma Ware and Mend Mariwany, with sound design by Eloise Stevens. Our theme music is by Neeta Sarl. Full credits for this episode are available. Sign up here for a free daily newsletter from The Conversation.Further reading:How treaties protecting fossil fuel investors could jeopardize global efforts to save the climate – and cost countries billionsEnergy charter treaty makes climate action nearly illegal in 52 countries – so how can we leave it?How Clive Palmer is suing Australia for $300 billion with the help of an obscure legal clause (and Christian Porter)The Energy Charter Treaty lets fossil fuel firms sue governments – but its future is now in question 

Chronic pain affects hundreds of millions of people around the world. But the opioid crisis in North America led many health care providers to realize they relied too heavily on drugs to help patients manage their pain.In this episode, a pain management specialist discusses new developments in pain treatment and why there’s hope for patients with chronic pain. Rachael Rzasa Lynn Associate Professor of Anesthesiology, University of Colorado Anschutz Medical Campus speaks to Amanda Mascarelli Senior Health and Medicine Editor at The Conversation in the US about emerging chronic pain treatments.This episode was written and produced by Katie Flood with assistance from Mend Mariwany. Eloise Stevens does our sound design, and our theme music is by Neeta Sarl. Gemma Ware is the executive editor. Full credits available here. Subscribe to a free daily newsletter from The Conversation. To support what we do, please consider donating to The Conversation.Further reading:New treatments offer much-needed hope for patients suffering from chronic painChronic pain can be objectively measured using brain signals – new researchUnderstanding that chronic back pain originates from within the brain could lead to quicker recovery, a new study findsHow cannabis and psilocybin might help some of the 50 million Americans who are experiencing chronic pain

Across the world, fans will soon be tuning in at all hours of the day and night to watch the Paris Olympics. In a world where on-demand media streaming is now increasingly the norm, sport is something of a rarity. It’s watched live, often with other people. Can something as simple as watching a sporting competition at the same time bring people closer together? In this episode, we explore this question with a Garriy Shteynberg an associate professor of psychology at the University of Tennessee in the US who studies the impact of shared experiences.We're running a listener survey to hear what you think about the podcast. It should take just a few minutes of your time and we’d really appreciate your thoughts. You can fill it in here.This episode was written and produced by Katie Flood with assistance from Mend Mariwany. Eloise Stevens does our sound design, and our theme music is by Neeta Sarl. Gemma Ware is the executive editor. Full credits available here. Subscribe to a free daily newsletter from The Conversation. To support what we do, please consider donating to The Conversation.Further reading and listening:‘Collective mind’ bridges societal divides − psychology research explores how watching the same thing can bring people togetherHow to depolarise deeply divided societies – podcastMore coverage of the 2024 Paris Olympics across The Conversation

A few days after Labour leader Keir Starmer was elected British prime minister on July 4 with a landslide victory, ending 14 years of Conservative-led rule, a coalition of left-wing parties came out on top in the French legislative elections. It was a good week for the left in this corner of Europe.In this episode, we’ve brought together an expert from each country to help analyse the results and what they tell us about the right in French and British politics. Featuring Tim Bale, Professor of Politics, Queen Mary University of London and Safia Dahani, post-doctoral researcher in sociology at Université Paris 1 Panthéon-Sorbonne.We're running a listener survey to hear what you think about the podcast. It should take just a few minutes of your time and we’d really appreciate your thoughts. You can fill it in here.This episode was written and produced by Mend Mariwany and Gemma Ware. Eloise Stevens does our sound design, and our theme music is by Neeta Sarl. Gemma Ware is the executive editor. Full credits available here. Subscribe to a free daily newsletter from The Conversation. To support what we do, please consider donating to The Conversation.Further reading:French elections: ‘Power will shift from the presidential palace to the National Assembly and the Senate’« La légitimation de l’extrême droite est autant le fait d’autres partis que de l’espace médiatique »Starmer must seize the chance to rethink the UK-Europe relationship – here’s how he can do itTory wipeout delivers landslide Labour victory: what the experts say

Seagrass, a marine plant that flowers underwater, has lots of environmental benefits – from storing carbon to preventing coastal erosion. In this episode, we speak to Isabel Key, a marine ecologist at the University of Edinburgh in the UK, about her work recording the soundscape of Scottish seagrass meadows to uncover more about the creatures living within them.She also explains how this is the first step in the development of a seagrass sound library and potentially even artificial intelligence tools that could help us better understand the sounds of the sea. This episode was written and produced by Katie Flood. Eloise Stevens does our sound design, and our theme music is by Neeta Sarl. Gemma Ware is the executive editor. Full credits available here. Subscribe to a free daily newsletter from The Conversation. To support what we do, please consider donating to The Conversation. Further reading:Seagrass meadows are rapidly expanding near inhabited islands in Maldives – here’s whyMeet the world’s largest plant: a single seagrass clone stretching 180 km in Western Australia’s Shark BaySeagrass is a marine powerhouse, so why isn’t it on the world’s conservation agenda?