The Ocean Visions Global Ecosystem for Ocean Solutions (GEOS) is a programme endorsed by the United Nations Decade of Ocean Science for Sustainable Development. GEOS brings together partners worldwide with a common objective of generating knowledge and innovative solutions to address climate change and related ocean challenges. GEOS is a framework to catalyse the co-design, development and deployment of equitable, durable and scalable ocean-based solutions for critical challenges at the ocean-climate nexus.