The North Sea, one of the most well-observed and heavily exploited shelf sea regions, faces substantial challenges due to climate change, with far-reaching effects on food security, ocean health, and through feedback effects, on the climate system. To address these pressing issues, it is crucial to understand the complex and dynamic processes driving the North Sea system and their future evolution. The North Sea's extensive spatiotemporal observational coverage provides a unique opportunity to study the effects of climate change on the coastal ocean. This session aims to bring together multidisciplinary perspectives to address the current state, future threats such as compound extremes, and other critical issues affecting the North Sea. We invite submissions from observational and modelling studies across multiple disciplines, including physics, chemistry, and biology, that address, but are not limited to, the following topics related to the North Sea: primary production, biogeochemical cycling of nutrients and oxygen, the ocean carbon cycle, carbon dioxide removal technologies (CDR), monitoring, reporting and verification of CDR, ocean acidification, climatic variability, extreme events, circulation patterns, land-ocean interactions, biophysical interactions, sediment dynamics, marine ecology and biodiversity, and socio-economic impacts and ecosystem services.