NbS Triple Win Toolkit: Evidence Base 111 To inform the development of potential headline biodiversity indicators, research was undertaken into frameworks and indicators which are already operational and designed to report on biodiversity components. Indicators used in the NbS case studies identified as above were reviewed along with further 66 indicator frameworks, for a total of460 indicators reviewed and synthesised. While the focus of this work has specifically been on applicability to International Climate Finance (ICF) and NbS, it should be noted that much of the reviews could be relevant to other funding mechanisms, and to broader biodiversity considerations. A review of existing indicator frameworks was conducted to understand key characteristics which can help identify approaches that might be adapted for biodiversity indicators as well as understanding where problems could arise.The Biodiversity Indicator Framework Review aims to reviewexisting indicator frameworks and: Identify key indicator frameworks to align with. Identify approaches to producing indicators that might be particularly relevant for headline indicators of funders. Identify key strengths, weaknesses, and important characteristicsof indicator frameworks in relation to monitoring the performanceof NbS projects. Provide a short summary of the most relevant indicator frameworks for headline ICF biodiversity indicators. To recommend effective indicators for reporting impacts of funding on biodiversity, it is first valuable to understand indicators that have been Frameworks and indicators review designed and implemented previously. This can help ensure indicator development takes advantage of the wealth of information already available, including an understanding of the relative advantagesand disadvantages of different approaches in the funding context.The Biodiversity Indicators Review therefore aimed to reviewexisting biodiversity indicators in order to: Identify different types of biodiversity indicator that are already implemented, particularly considering which aspects of biodiversity are measured and which different approaches can be taken to measure biodiversity. Review and evaluate the design and implementation of the indicators, where information was available. Summarise the strengths, weaknesses, important characteristics of and likely effort required to calculate different types of indicator identified (in relation to ICF in particular). Provide a short summary of the most relevant specific biodiversity indicators identified within the review for their potential relevanceto investment in NbS projects. Spreadsheets containing collated data specific to each of the reviews is available from JNCC upon request. Key findings of the Biodiversity Indicator Review and Biodiversity Indicator Framework Review are available as supporting interim reports, and presented in the Biodiversity Indicators in Context chapter.