The impacts of climate change on the ocean and marine ecosystems profoundly affect human livelihoods and mobility. Recognizing the need to respond to the challenges arising from the interaction between ocean and marine ecosystem change and human migration and displacement, the International Organization for Migration (IOM) and the Ocean and Climate Platform (OCP) are working together to bring visibility to this issue and promote concrete action to address these challenges. This document, prepared jointly by IOM and OCP, provides an overview of the following: (a) links between ocean, climate change and human mobility; (b) key challenges that countries, communities and individuals face; and  (c) possible solutions to address them.