New York has chosen its new mayor - Zohran Mamdani. He’s a Muslim, was born in Uganda, and loves Arsenal. He’s also pretty young. The politician has been making waves online with his social media campaign and united a huge Gen Z force behind him. From viral moments like jumping in the sea in a suit to walking the entire length of Manhattan, he’s probably appeared on your timeline.

So, what made his campaign go down so well with younger voters? We speak to BBC journalist Nathalia Jimenez, who has watched all this unfold in New York. She explains whether other politicians around the world can learn from his success.

We also hear from young New Yorkers and their experience taking part in some of the mayor-elect’s events, as well as Ugandans, who share what it’s like to see someone from their country go and win an American election.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Pria Rai Producers: Imogen James and Julia Ross-Roy Editor: Verity Wilde

The Amazon rainforest is home to billions of trees, animals and people. It’s spread across nine countries in South America - Brazil, Peru, Columbia, Bolivia, Ecuador, French Guiana, Guyana, Suriname and Venezuela - but the majority of it, almost 60%, is in Brazil. As well as being rich in biodiversity, the Amazon is also very important in the world's fight against climate change; as it absorbs carbon dioxide and produces oxygen.

But the Amazon has been declining. In fact, in 2022 Brazil set a new deforestation record for the amount of trees cut down in the rainforest in one month. This impact is being felt directly by the indigenous groups who have been living there for thousands of years, but also the world as a whole. In this episode we’re joined by Graihagh Jackson, from the BBC’s The Climate Question podcast, and Dr Erika Berenguer, who’s a Senior Research Associate at the University of Oxford and Lancaster. We chat about why the Amazon is so important, and what’s being done to protect it. This year’s climate summit Cop30 is being held in Belem, in the Amazon, for the first time. So we also discuss what impact this could have on the world’s largest rainforest.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producer: Mora Morrison and Chelsea Coates Video producer: Baldeep Chahal Editor: Verity Wilde

The RSF (Rapid Support Forces) have taken the city of el-Fasher, in Darfur, from the Sudanese army. The city had been under siege by RSF fighters for 18 months, trapping hundreds of thousands of civilians and sparking a hunger crisis. Thousands are now trying to flee. And there are mounting fears of mass killings and sexual violence - some of which are feared to be ethically motivated.

The civil war in Sudan has been going on since 2023. But some believe that this could be a turning point. Deka Barrow, a journalist from BBC Monitoring who’s based in Nairobi, joins us to explain why. We also hear from someone who is trapped in el-Fasher.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producer: Mora Morrison Editor: Verity Wilde

Sora and Vibes are making it easier than ever to make AI-generated videos. You may already be familiar with low-budget ‘AI slop’ which is creeping into TikTok and Instagram. Things like Will Smith eating spaghetti, dogs riding motorbikes, or the late Queen Elizabeth rapping. Or, maybe you enjoy POV videos - and imagining you’re an angel waking up in heaven, or the Pope in the Vatican. Now Sora, from the owners of ChatGPT, and Vibes, from Meta, are promising to take AI-generated video content to the next level. They both launched in September.

So, is the internet about to change forever? How can we tell what’s real and what’s not? Is this a new age of misinformation? And should we be worried that President Donald Trump is sharing lots of these videos? The BBC’s Jacqui Wakefield joins us to share all. Plus, we hear from two students about why they love or hate AI-generated content.

Thumbnail image: Reddit/minchoi

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Iqra Farooq Video producer: Baldeep Chahal Producers: Mora Morrison and Natalia Makohon Editor: Verity Wilde

Nauru is the third smallest country in the world. It’s located in the middle of the South Pacific Ocean and is home to around 12-thousand people. The tiny island has recently received its first transfer of foreign detainees from Australia - following a controversial deal between the two nations. The deal was struck after Australia's top court ruled that it could not indefinitely detain about 358 people, the bulk of whom have been convicted of crimes, forcing their release into the community. The BBC’s Katy Watson is based in Sydney. She breaks down what we need to know about this deal, and what it says about Australia’s migration policy.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Iqra Farooq Producers: Chelsea Coates and Mora Morrison Editor: Verity Wilde

How does someone stop being a prince? The UK's King Charles has announced that his brother Andrew will no longer have this or any of his other titles after public pressure over his links with the convicted sex offender Jeffrey Epstein. He will also have to vacate his royal mansion in Windsor.

This is a rare move in royal history. In this episode we break down the main points and take a closer look at the people key to the story: the former prince; the King; Jeffrey Epstein and Virginia Giuffre, a victim of sex trafficking who alleged Andrew had sex with her three times as a teenager and whose memoir was recently published.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Benita Barden and Maria Clara Montoya Editors: Verity Wilde and Harriet Oliver

Sumo is Japan’s national sport. Its origins go back more than 1,500 years, and it rarely leaves Japan. But some competitions are starting to tour - including The Grand Sumo Tournament, which recently happened in London. Wrestlers often start training from a very young age, and training is intense. It involves building strength and fitness - and eating. A lot. They consume around 10,000 calories a day.

The BBC’s Mariko Oi is from Japan. She talks us through all we need to know about the sport. We also hear from 21-year-old Aonishiki Arata. He’s one of Ukraine’s top wrestlers and now lives and trains in Japan. And two fans share why they love the sport.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Hannah Gelbart Producers: Mora Morrison and Natalia Makohon Editor: Verity Wilde

The White House, in the heart of Washington DC, has housed American presidents for more than two centuries. But now, the East Wing of the famous complex has been torn down by President Donald Trump.

He says he’s replacing it with a huge ballroom to host events. The administration hasn’t revealed plans for it just yet, but the latest estimated cost its around $300m.

So did President Trump have permission to partially demolish the building? What do people think about it? We speak to BBC reporter Sakshi Venkatraman, all the way from New York. She also explains how President Trump isn’t the only one who has made changes to the presidential residence over the years, but he’s already made a few since moving back in.

Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 330 12 33 22 6 Presenter: Chelsea Coates Producers: Imogen James and Emily Horler Editor: Verity Wilde