Climate Question listeners take over the programme again with their head-scratchers. Graihagh Jackson and her panel: Justin Rowlatt, BBC climate editor, Akshat Rathi, senior climate reporter for Bloomberg News and host of Bloomberg's Zero podcast and Caroline Steel, presenter of BBC Crowdscience, ponder the impact of deforestation and marvel at the beauty of sequoia trees, which can live for more than 1000 years.

There are also questions on the carbon cost of generative AI, the discovery of "black" oxygen in our oceans and deep-sea mining.

Plus, which animal has the biggest carbon footprint?

If you've got a query, email us at theclimatequestion@bbc.com or leave a Whatsapp message on +44 8000 321 721

Producer: Osman Iqbal Sound mix: Gareth Jones and Tom Brignell Editor: Simon Watts

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