Achieving the transition towards carbon-neutral and climate-resilient development necessitates a comprehensive understanding of the financial needs, targeted investment areas, and the deployment of effective financial instruments on a global scale. Moreover, reforming the international financial architecture is crucial to facilitate and support this transition. The action should explore these critical dimensions of climate finance, including the identification of tools to monitor climate financial flows (public and private, international and domestic) as a foundation for evidence-based decision-making. The action should cover the following elements at global level with differentiation by geographic area with a focus on SIDS and LDCs: 1) Identification of Financial Needs for Climate Transition 2) Targeted Areas for Investment 3) Financial Instruments and Mechanisms 4) Reforming the International Financial Architecture 5) Monitoring Climate Financial Flows 6) Mobilizing Private Sector Investment. Form of Funding: Procurement