African banks are standing at the edge of a historic capital reallocation. Climate finance flows to emerging markets are accelerating, yet they remain highly concentrated in a small set of countries and institutions. The constraint is no longer a lack of capital — it is institutional readiness. African banks that cannot demonstrate credible emissions baselines, disciplined reduction pathways, and defensible impact measurement are increasingly sidelined from green capital flows, regardless of ambition or intent. For domestic leaders, the opportunity is clear: elevate sustainability architecture to global standards and position the institution as a trusted regional conduit for climate finance.