The African Youth Climate Assembly (AYCA) 2025, held on 5–6 September in Addis Ababa, is the official youth platform for Africa Climate Summit 2 (ACS2) and Africa Climate Week, mobilizing young leaders to shape climate policy, drive innovation, and promote inclusive, sustainable solutions. Through the AYCA Declaration, the Assembly channels youth voices into high-level decisions, advances Nature-Based Solutions, and strengthens youth participation across Africa’s climate governance.