Dear Colleagues, We are excited to invite you to submit an abstract to Goldschmidt *session **05h: Strategies of Nuclear Waste and Infrastructure Management towards Decarbonization Efforts in the Energy Sector*. In this session, we aim to bring together researchers working on experimental and modelling studies at various temporal and spatial scales, ranging from molecular to the macro level and at field scales. The abstract submission deadline is March 29 and applications for travel grants are due March 15. See you in Chicago! -- Session description: https://conf.goldschmidt.info/goldschmidt/2024/goldschmidt/2024/meetingapp.cgi/Session/6413 Goldschmidt 2024, Chicago, August 18-23 05h: Strategies of Nuclear Waste and Infrastructure Management towards Decarbonization Efforts in the Energy Sector According to the most recent IAEA Climate Change and Nuclear Power report, nuclear power is among the lowest carbon energy technologies, and potentially an important contributor to a fully decarbonized power system. This report has revitalised study of the mineralogical, geochemical, and hydrogeological aspects of nuclear waste forms and their long-term storage, and investigation into advanced reactor designs like Gen IV and small modular reactors with high burnup nuclear fuels. Therefore, the following key research areas have come (back) into focus: - Analysis of the evolving properties and long-term performance of waste forms, such as spent nuclear fuel, glasses, ceramics, glass-ceramics, concrete, and geopolymers, throughout their expected disposal life-cycle. - Nuclear fuel, uranium mining process, fuel fabrication and the behaviour of spent fuel. - Mineralogical, mechanical, chemical and hydrological transformations within the various components of a multi-barrier system, especially at materials interfaces, including reactive transport of radionuclides. - Adsorption of radionuclides onto mineral phases in multi-barrier systems, the host rock and natural environment, as well as the development of secondary phases, i.e. redox transformations and solid-solutions. - Biodegradation and radiation effects that contribute to the long-term performance of waste forms. Session Convenors: Agathe Bourchy, Sarah Finkeldei, Sarah Saslow, Gordon Thorogood, Manuel Vejar, and Frances Elisa Zengotita.