The Arctic Observing Summit is a biennial event convened as part of the Sustaining Arctic Observing Networks (SAON) initiative to guide the design, coordination, and operation of an international network of observing systems that improves our understanding of and response to Arctic change. Sustained observations that enable us to track, understand, and project this change are essential. They are necessary to guide adaptation and mitigation responses at various scales. This session invites papers focused on any aspect of Arctic Observing with the goal of sharing and/or supplementing the work of past Summits, and implementing recommendations including the identification of Essential Arctic Variables using the SAON Roadmap for Arctic Observing and Data Systems. We welcome papers that consider new and sustainable ways of supporting and expanding observing activities through collaboration with Indigenous People, novel use of existing observational infrastructure and ways in which observing systems can be responsive to emerging issues.