The Conversation Weekly

Every year, 400 million tons of plastic are produced worldwide, and every year, approximately 57 million tons of plastic waste is created. And yet in November, the latest round of negotiations to agree the first legally binding international treaty on plastics pollution collapsed.So what can we really do about the plastics pollution problem? In this episode we sat down with Mark Miodowonik, professor of materials and society at UCL in the UK, to understand the history of plastic, how it’s shaped our lives, and what can be done to make sure more plastic is recycled and less ends up polluting the planet. This episode was written and produced by Katie Flood 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.If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen.Further reading:Can you trust companies that say their plastic products are recyclable? US regulators may crack down on deceptive claimsThe plastic recycling system is broken – here’s how we can fix itIf plastic manufacturing goes up 10%, plastic pollution goes up 10% – and we’re set for a huge surge in productionTime is running out for a treaty to end plastic pollution – here’s why it matters Hosted on Acast. See acast.com/privacy for more information.

In a special episode to start 2025, we’ve brought together three science editors from The Conversation’s editions around the world to discuss what to look out for in the world of science and technology in the coming year. Host Gemma Ware is joined by Paul Rincon from The Conversation in the UK, Elsa Couderc from The Conversation in France and Signe Dean from The Conversation in Australia. This episode was written and produced by Gemma Ware and Katie Flood 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.If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen.Further reading and listening Has Nasa found evidence of ancient life on Mars? An expert examines the latest discoverySeveral companies are testing brain implants – why is there so much attention swirling around Neuralink? Two professors unpack the ethical issuesNuclear fusion record broken – what will it take to start generating electricity? PodcastQuantum computers are like kaleidoscopes − why unusual metaphors help illustrate science and technology Hosted on Acast. See acast.com/privacy for more information.

Zimbabwe is on the cusp of abolishing the death penalty after its Death Penalty Abolition Bill was approved by the senate on December 12. The bill is now sitting on the desk of Zimbabwe’s president, Emmerson Mnangagwa, a known opponent of the death penalty, waiting for his assent.In this episode, we speak to two experts on the death penalty, Carolyn Hoyle and Parvais Jabbar from the University of Oxford's Death Penalty Research Unit, who explain how Zimbabwe got here and what abolition means for both the country, and the continent. This episode was written and produced by Gemma Ware and Mend Mariwany 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.If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen.Further reading Zimbabwe’s likely to abolish the death penalty: how it got here and what it means for the continentKenyan prisoners on death row weren’t deterred by the threat of the death penalty: new research findingsWhy the death penalty is losing favour in sub-Saharan Africa Hosted on Acast. See acast.com/privacy for more information.

Surveys suggest that in many western democracies, political trust is at rock bottom. But is it really such a bad thing for people living in a democracy to distrust their government?In this episode, we talk to political scientist Grant Duncan, visiting scholar in politics at City St George's, University of London, about why he thinks a certain level of distrust and scepticism of powerful politicians is actually healthy for democracy. And about how populists, like Donald Trump, manage to use people’s distrust in political elites to their advantage.This episode was written and produced by Gemma Ware, Mend Mariwany and Katie Flood 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.If you like the show, please consider donating to The Conversation, which is an independent, not-for-profit news organisation. And please do rate and review the show wherever you listen.Further reading Don’t trust politicians? That may not be such a bad thingWhy people vote for politicians they know are liarsTrusting societies are overall happier – a happiness expert explains why Hosted on Acast. See acast.com/privacy for more information.