Modern financial institutions are coordination mechanisms that have evolved to help solve specific sorts of collective action challenges. The idea of biodiversity and conservation finance is to nudge the further evolution of these institutions to help solve the collective action problems associated with nature conservation. For decades economists studying the environment have used tools and ideas from financial management to provide insights into natural resource management and conservation. However, the field has primarily adapted the use of financial tools rather than investigating mechanisms for financing, except for the sizable literature on direct payments (i.e., payments for ecosystem services). Increasingly, the policy world and investing world recognize that more resources are needed to maintain the biosphere. Blending prior environmental economics research with new research and practice on financing nature conservation may be able to help direct financial innovation to help solve, yet unsolved, collective action problems in order to conserve nature and ensure sustainable development.
Successful implementation of the Kunming-Montreal Global Biodiversity Framework requires identifying a process for measuring and valuing changes in biodiversity that build on the recognition that economics and valuation must play a key role in “halting and reversing” biodiversity loss. Here, we discuss considerations for a practical path to valuing changes in biodiversity. Framing changes in the value of biodiversity as a summary of changes in certain natural assets enables leveraging existing approaches and international standards associated with environmental-economic accounting. We discuss why an approach that builds from individual species, evolutionary groups, or functional groups into a practical, hierarchical statistical classification system is better than the development of any one biodiversity index. We merge techniques from ecology and other natural sciences, national and environmental-economic accounting, and economics, which are all on the cusp of making measurement of the change in the value of biodiversity possible. The focus should be on scaling and integrating these approaches. The path forward appears to begin with imperfect but useful measures, grounded in robust concepts, while establishing ambition to further scale-up measurements—just like the past evolution of many other official statistical series.