Misha Glenny explores the world of rare earth metals and other critical raw materials. They are vital for the future of technology and the green transition. But some see China's monopoly on production as a major global threat.In the first of five episodes, Misha finds out what the 17 rare earth metals are and hears about their weird and wonderful applications. He also discovers how China has managed to dominate the mining and refining of them.Guests: Dr Julie Klinger, Assistant Professor in the Department of Geography and Spatial Sciences at the University of Delaware and author of Rare Earth Frontiers: From Terrestrial Subsoils to Lunar Landscapes Sophia Kalantzakos, Global Distinguished Professor in Environmental Studies and Public Policy at New York University and the author of China and the Geopolitics of Rare EarthsProducer: Ben Carter Editor: Hugh Levinson Sound engineer: James Beard Production coordinator: Janet Staples

A recent visit to Taiwan by Speaker of the US House of Representatives, Nancy Pelosi, has heightened tensions between the US and China. America has accused China of dangerous military provocations in the region. China has warned the US not to play with fire. Add to all that Russia’s invasion of Ukraine, and concerns that China could be contemplating something similar in Taiwan, and it’s time to ask the question: Will the US and China go to war over Taiwan?Contributors: James Lin from the University of Washington and expert on Taiwanese history Dr Yu Jie, Senior Research Fellow on China, Chatham House

Big money, glamorous work trips abroad, and becoming your own boss - the world of door-to-door selling and chugging on the high street has been rebooted for the social media age. The industry has been around for decades, but revenues have seen a boost over the last few years and it is now worth £2.6bn a year in the UK. Some direct selling firms in the UK are jumping on the popularity of trends such as hustle culture to recruit young, ambitious people into entry-level jobs in ‘marketing’ or ‘management’ and to work with big, well-known, clients. But as Lora Jones finds out, the reality is very different. She finds keen young people who have been sold the dream, only to find themselves working 80-hour weeks - for low rates of pay. So how exactly is that possible - and what's the set-up that can reel in so many hungry young recruits? And what protection do they really have from exploitation? Reporter: Lora Jones Producers: Jim Booth, Samantha Everett, Nalini Sivathasan Researchers: Star McFarlane, Jade Thompson Executive Producers: Gail Champion and Kim Rowell Production Manager: Jon Briest

The Bhopal gas tragedy was the world's worst industrial accident. Tens of thousands of people died and many more suffered long term illnesses when lethal methyl isocyanate gas leaked from the Union Carbide plant in the city in central India on 2nd December 1984. For the previous two years one man had been predicting that Bhopal was an accident waiting to happen. Forty years ago this month the Bhopali journalist Rajkumar Keswani wrote his first article warning of the dangers posed by safety lapses at the plant. During a dogged investigation pitting him against political power, corporate money and the indifference of the media and public opinion, he never gave up. This cinematic documentary series tells his story for the first time. Episode 5. The Fatal Night As the city slept on the night of the 2nd December 1984, a huge leak of lethal methyl isocyanate escaped from the Bhopal Union Carbide chemical plant. Keswani realises his worst fears have come to pass. All his warnings have been ignored and now people are dying in their thousands before him. Union Carbide refuses to divulge what gas has been released and hospital doctors are helpless, not knowing what treatment to administer desperate patients. After the tragedy, Rajkumar Keswani is honoured with India's most prestigious award for journalism. In his acceptance speech he said he was receiving this award for his greatest journalistic failure. Narrator Narinder Samra Written and researched by Anubha Yadav and Radhika Kapur Music and Sound Design by Shreyan Chatterjee Studio Mix Donald McDonald Producer Neil McCarthy

The Bhopal gas tragedy was the worlds worst industrial accident. Tens of thousands of people died and many more suffered long term illnesses when lethal methyl isocyanate gas leaked from the Union Carbide plant in the city in central India on 2nd December 1984. For the previous two years one man had been predicting that Bhopal was an accident waiting to happen. Forty years ago this month the Bhopali journalist Rajkumar Keswani wrote his first article warning of the dangers posed by safety lapses at the plant. During a dogged investigation pitting him against political power, corporate money and the indifference of the media and public opinion, he never gave up. This cinematic documentary series tells his story for the first time. Episode 4. Bhopal on the Brink of Disaster Keswani decides he must get the attention of law makers and show them his evidence. His safety concerns are raised in the State Assembly but the labour minister at the time bats them away giving Keswani the sense that Union Carbide is unimpeachable. He then petitions the Supreme Court of India, but gets no reply. Feeling somewhat defeated and with increasing financial woes, Keswani decides to take a steady job at a newspaper in a nearby city. But soon enough his conscience drags him back to Bhopal where he writes to the editors of national newspapers. He gets a big break, publishing a comprehensive account of his findings in a leading national daily. He waits for a response. Narrator Narinder Samra Written and researched by Anubha Yadav and Radhika Kapur Music and Sound Design by Shreyan Chatterjee Studio Mix by Donald McDonald Producer Neil McCarthy

The Bhopal gas tragedy was the worlds worst industrial accident. Tens of thousands of people died and many more suffered long term illnesses when lethal methyl isocyanate gas leaked from the Union Carbide plant in the city in central India on 2nd December 1984. For the previous two years one man had been predicting that Bhopal was an accident waiting to happen. Forty years ago this month the Bhopali journalist Rajkumar Keswani wrote his first article warning of the dangers posed by safety lapses at the plant. During a dogged investigation pitting him against political power, corporate money and the indifference of the media and public opinion, he never gave up. This cinematic documentary series tells his story for the first time. Episode 3. Friendly Business The more Keswani investigates the more he finds a cosy relationship between Union Carbide and local politicians and journalists. He's determined to expose the nepotism he uncovers but yet again, his written warning to the city falls on deaf ears. His friends and family don't believe him either, apart from his wife. Money troubles don't help. But Keswani is sure he has truth on his side, and sets his sights on the highest court in the land. Narrator Narinder Samra Written and researched by Anubha Yadav and Radhika Kapur Music and Sound Design by Shreyan Chatterjee Studio Mix by Donald McDonald Producer Neil McCarthy

The Bhopal gas tragedy was the worlds worst industrial accident. Tens of thousands of people died and many more suffered long term illnesses when lethal methyl isocyanate gas leaked from the Union Carbide plant in the city in central India on 2nd December 1984. For the previous two years one man had been predicting that Bhopal was an accident waiting to happen. Forty years ago this month the Bhopali journalist Rajkumar Keswani wrote his first article warning of the dangers posed by safety lapses at the plant. During a dogged investigation pitting him against political power, corporate money and the indifference of the media and public opinion, he never gave up. This cinematic documentary series tells his story for the first time. Episode 2. The Smell of Grass Keswani digs deeper and discovers that a town planning order to relocate the chemical plant to an industrial zone, away from densely populated areas, was ignored. Union leaders smuggle him into the factory where he sees first hand the lack of safety controls and general disrepair. He learns more about the chemicals being manufactured as pesticides inside Union Carbide and understands the danger if they were to leak. He sits down to write his first 'Rapat' newspaper article under the headline 'Save, Please Save this City', and waits for a response. Narrator Narinder Samra Written and researched by Anubha Yadav and Radhika Kapur Music and Sound Design by Shreyan Chatterjee Studio Mix by Donald McDonald Producer Neil McCarthy

The Bhopal gas tragedy was the worlds worst industrial accident. Tens of thousands of people died and many more suffered long term illnesses when lethal methyl isocyanate gas leaked from the Union Carbide plant in the city in central India on 2nd December 1984. For the previous two years one man had been predicting that Bhopal was an accident waiting to happen. Forty years ago this month the Bhopali journalist Rajkumar Keswani wrote his first article warning of the dangers posed by safety lapses at the plant. During a dogged investigation pitting him against political power, corporate money and the indifference of the media and public opinion, he never gave up. This cinematic documentary series tells his story for the first time. Episode 1. A Friend Dies Keswani is the kind of journalist who finds his stories on the ground, talking to people in his native Bhopal. One evening he learns from his friend Ashraf, a worker at the Union Carbide chemical plant, that there are regular safety lapses and leaks. Shortly afterwards, Ashraf dies when he's exposed to lethal gases. A grief stricken Keswani decides he must find the truth behind safety concerns at the plant. But when questioning government officials he finds nothing but support for the multinational company that had chosen Bhopal as its base. He hears more worrying accounts from local union officials and when they are published in a small article, retribution follows. Keswani feels sure that something troubling is going on behind the scenes. Narrator Narinder Samra Written and researched by Anubha Yadav and Radhika Kapur Music and Sound Design by Shreyan Chatterjee Studio Mix by Donald McDonald Producer Neil McCarthy With thanks to Down To Earth

Art by women is literally undervalued. The highest price achieved by a contemporary female artist is $12.4m, while it is $91m for a man. If a painting is signed by a man it goes up in value, signed by a woman it goes down. We might expect this historically, but as the majority of art students today are women, why is there such a gender value gap now? To untangle this mystery, Mary Ann Sieghart enters a thrilling world of glitzy, high-stake auctions and make-or-break gallery decisions. She lifts the lid on the opaque world of art valuation, explores how punters react to genderless AI art, and uncovers historic collusion and contemporary bias. She asks if male artists are actually better than women and why, in the bible of the art world today, there is just one woman mentioned, as a footnote. Pinning down work being done to level this playing field, Mary Ann talks to the galleries showing more works by women, discovering powerful women shifting the attention and canny investors who are realising maybe it is just the right time to buy. Featured in the programme are: Frances Morris, director of Tate Modern; Prof of Finance, Renee Adams; from Sotheby’s Helena Newman and Marina Ruiz Colomer; philanthropist Valeria Napoleone, Bellatrix Hubert from David Zwirner gallery; author Helen Gorrill, art curator Naomi Polonsky, and the London Art Fair. Producer: Sarah Bowen

Rima Ahmed takes the bus into Leeds and tries to find out why it is “the biggest city in Western Europe without a mass transit system”. Rima meets passengers, campaigners and history buffs as well as local politicians to delve into why the city has had so many failed attempts to improve its public transport system since its tram was abolished in 1959.Leeds was a transport pioneer - it introduced the first electric trams and trolleybuses in the country. In the 1970s and 80s, local councillors proudly declared Leeds “the motorway city” hailing the building of a massive urban motorway right through the city centre. In the 1990s, Sheffield was already building its supertram network and Leeds was also asking government to fund its own version. Despite funding being approved in 2001, £70 million had been wasted by the time Leeds’s supertram project was pulled by Transport Secretary Alastair Darling in 2005. A “trolleybus” scheme mooted in 2012 was also scrapped.Now, the citizens of Leeds have been told that, if they are lucky, they may get a new mass transit system by 2040. Work may begin sometime by the end of the decade. In the meantime, the commuters of Leeds continue to live life in the bus lane.Presenter: Rima Ahmed Producer: Johnathan I'Anson Sound mix: Craig Boardman Production Co-ordinator: Janet Staples Editor: Nicola Addyman