Contributor(s): Dr Michael I Kanu, Philippe Carvalho Raposo, Lowri Mai Griffiths, Dr Robert Blasiak, Dr Siva Thambisetty | On 5 March 2023, state parties at the United Nations agreed the text of a new Treaty to cover biodiversity beyond national jurisdiction, in areas also known as the high seas. The Biodiversity Beyond National Jurisdiction (BBNJ) Treaty sets out governance mechanisms for oceans over nearly half the planet’s surface covering marine genetic resources, environmental impact assessments, capacity building and technology transfer and Area Based Management Tools. It has the potential to transform the conservation and sustainable use of biodiversity on the oceans beyond national jurisdiction and bring about greater sharing of the wealth of the oceans.