The deepest parts of the Pacific Ocean have been largely unexplored for centuries. But now the ecosystem thousands of metres beneath the surface is under threat - from companies wanting to mine the seabed for rare metals and minerals.The proposals to allow deep-sea mining are centre-stage at global talks by the International Seabed Authority - the UN body in charge of regulation - and its members in Jamaica in the coming weeks. It comes after a two-year ban on the practice expired when countries failed to reach an agreement on new rules. Scientists fear a "goldrush" for precious metals beneath the oceans could have devastating consequences for marine life. But supporters argue that these metals are needed if the world is to meet the demand for green technologies - such as electric car batteries - that will be key in the fight against climate change.So is this a necessary step in the journey towards cleaner, greener technologies? Does climate change pose a bigger risk to our oceans overall? And what impact might mining have on this rare and delicate ecosystem?Shaun Ley is joined by:Pierre Josso, mineral geoscientist at the British Geological SurveyHelen Czerski, physicist and oceanographer at University College London and author of 'Blue Machine: How the ocean shapes our world'Toby Fisher, environment lawyer who has negotiated with the International Seabed AuthorityAlso featuring: Gerard Barron, CEO of The Metals CompanyPhoto: An animal from the deep Pacific Ocean known as a 'gummy squirrel'. Credit: SMARTEX Project, Natural Environment Research Council, UK smartexccz.orgProducer: Sarah Passmore and Pandita Lorenz

Steve Jurvetson, founder of Future Ventures, and Gerard Barron, CEO of The Metals Company, dive into the future of electric vehicles and sustainable ocean mining. They explore the promising potential of polymetallic nodules for battery materials, emphasizing robotic solutions for eco-friendly extraction. The conversation touches on geopolitical challenges in deep-sea mining and the crucial balance of innovation and environmental responsibility. Together, they outline how these advancements can reshape the EV market while prioritizing sustainability.