On May 9-10th the Royal Society hosted the discussion meeting on: “Heat and carbon uptake in the Southern Ocean: the state of the art and future priorities”. This meeting was co-organised by ORCHESTRA and SONATA leads Andrew Meijers and Corinne Le Quéré, along with Pedro Monteiro of CSIR and Jean-Baptiste Sallée of LOCEAN. The meeting served as a valuable community milestone seeking to assimilate and interpret insights and discoveries from observations and modelling of heat and carbon uptake, as well as identify future challenges and priorities for the coming five to ten years. The meeting was attended by 100 people in person, with another 100+ online, with the ORCHESTRA/RoSES community well represented. Having so many of the international community together in person again at last, led to a very enthusiastic and engaged audience and each talk by the sixteen keynotes was discussed at length, as were the many posters provided by attendees. Talks covered the outcomes of major programmes such as ORCHESTRA, physical processes, air-sea-ice interactions, biogeochemical and biological components of the carbon system, as well as global impacts of the Southern Ocean. Recordings of presentations will become available at https://royalsociety.org/science-events-and-lectures/2022/05/southern-ocean/ and an issue of the Proceedings of the Royal Society A, with contributions by all speakers, will be released early in 2023.