41 men were working underground in a tunnel in India when a nearby landslide caused part of it to cave in, trapping them inside. They were rescued after 17 days. BBC South Asia Correspondent Samira Hussain explains why it took so long - and what questions the authorities are facing in the aftermath.

Chelsea Coates from the What in the World team describes what being trapped underground for ages can do to your mental and physical health.

And Maimuna Jabbie from The Gambia and co-lead of The Great Green Wall is one of the young delegates at COP28. The Great Green Wall aims to create an 8000km ‘wall of trees’ spanning the entire width of the African Continent. Maimuna tells us about the initiative and what she’s hoping to achieve at the climate summit.

Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: Chelsea Coates and Julia Ross-Roy Editors: Verity Wilde and Simon Peeks

Why did it take so long to rescue the Indian tunnel workers? 13:59 Share

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Why did it take so long to rescue the Indian tunnel workers?