Join Justin Rowlatt, BBC Climate Editor, Akshat Rathi, Senior Climate Reporter at Bloomberg, and Caroline Steel, Presenter for the BBC World Service. They tackle the critical role of sequoia trees and the consequences of deforestation. Discover the astonishing 'black' oxygen found in the depths of the ocean and its links to deep-sea mining. The conversation also highlights the carbon footprint of generative AI, revealing surprising truths about its environmental impact. Get ready for an engaging discussion on climate questions from listeners!

Join journalists Wanqing Zhang and Eric Junzhe as they reflect on the pressures and intense preparation surrounding China’s Gaokao exam, revealing unique coping mechanisms like throwing textbooks out the window. Soutik Biswas shares alarming insights into exam scandals in India that threaten students' futures. Meanwhile, Caroline Steel offers fascinating explanations behind recurring exam nightmares, connecting them to lingering stress and anxiety. It's a riveting look at the emotional toll of education across continents.

Caroline Steel, a BBC Science presenter, shares her insights on the shifting perceptions of diamonds. The discussion unveils the dark links between diamond mining and human rights abuses while highlighting the rise of ethical lab-grown alternatives. Steel explores the recent discovery of a giant diamond in Botswana and its economic implications. With younger consumers favoring eco-friendly choices, the future of traditional engagement rings is called into question, revealing a fascinating intersection of love, luxury, and ethics in the diamond industry.