The 2020 EGU Declaration of the Significance of Geoscience highlights the need for massive and widespread action to help people around the world to become literate about the changes affecting their and their offsprings’ and communities’ lives. The more people are literate about these changes, the more they can make informed decisions, adapt and mitigate. Previous General Assemblies have addressed climate change literacy (CL). Ocean literacy (OL) has developed strongly in recent years, especially with impetus from the UN Ocean Decade. Ocean-climate literacy (OCL) is an imperative that needs to be addressed massively and urgently, both within and beyond the EGU. We invite colleagues to submit contributions on any aspects of OCL; this can, of course, include CL (without the ocean) and OL (without the climate).