However, RBF may not be appropriate in all situations, and will need to be explored further in order to understand how it best fits with the principles in the Paris Declaration and objectives of the UNFCCC. Identifying results of an intervention is important for transparency in both donor and recipient contexts, as well as in demonstrating the feasibility and success of projects in the context of attracting private finance. Understanding both the climate-specific and broader environmental, economic and development impacts of climate finance can facilitate a more robust assessment of the costs and benefits of more ambitious actions. Assessing effectiveness includes not only demonstrating results, but also building an evidence base of what, how, and why an intervention worked in order to inform better policies and interventions in the future.