The advance of climate change has exacerbated existing vulnerabilities across the African continent, especially in West Africa. The emergence of “climate migrants” demonstrates one of the new challenges imposed on the region. This occurs in a context already characterized by increasing local conflicts and humanitarian crises, which could intensify if climatic processes, climatic events and institutional factors intersect. This paper seeks to answer the following question: how does the African Union approach the security implications of climate migration in West Africa? To explore this question, we adopt the paradigm of human security to understand the complex interrelationships between political, economic, and climate structures in the region. Methodologically, we employ a qualitative and hermeneutic approach, based on documentary analysis. First, we analyze documents and reports from international organizations, such as the IPCC and the UNHCR, to identify potential correlations between climate change and population displacements. Subsequently, we examine African Union documents that address the link between climate change, displacements and regional security, with a particular emphasis on the Peace and Security Council. Our findings indicate that the African Union adopts an integrated approach to climate change and security, recognizing their indirect relationship, while framing displacement as a developmental issue.