The climate finance architecture—the system of specialized, public funds that help countries implement climate mitigation and adaptation projects and programs—is crucial if the world is to meet the climate change challenge. Over the past 25 years, many national, regional and international climate funds have been created. Each new fund responded to needs and gaps that existed at the time, but this has led to a rather complex system.

This chart is taken from the report, The Future of the Funds: Exploring the Architecture of Multilateral Climate Finance. It is adapted from Climate Funds Update (Overseas Development Institute and Heinrich Böll Foundation).