Sustainability Language

Sustainable Finance & Investment

Biodiversity bond / nature bond

A bond whose proceeds finance the protection or restoration of biodiversity — from use-of-proceeds green bonds with nature objectives to outcome-linked wildlife bonds.

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Definition

A debt instrument that raises capital for biodiversity outcomes. The main form is the use-of-proceeds bond issued under green bond frameworks with proceeds allocated to eligible biodiversity activities — conservation, restoration, sustainable management of natural resources — guided by the IFC's Biodiversity Finance Reference Guide (2022, updated 2023), the first market guidance on what counts as biodiversity finance. A smaller class of outcomes-based instruments (such as the 2022 Wildlife Conservation Bond, the "rhino bond") links investor returns to measured conservation results.

References

IFC

First market guidance; eligible activity list built on ICMA principles; mapping to GBF targets; 2022 publication/2023 update.

Overview

What it means

The market is emerging from within green finance: the IFC guide builds on ICMA's Green Bond Principles and Green Loan Principles to define eligible activities and, through a metrics supplement (2024, with TNFD and others), how to report impact. Biodiversity bonds map issuances against the Kunming-Montreal Global Biodiversity Framework targets, connecting bond markets to the 2030 halt-and-reverse goal.

How it is used

Development banks, sovereigns and corporates issue bonds financing protected areas, sustainable forestry, regenerative agriculture and blue-economy projects; investors use the IFC eligibility list to screen claims. Related structures include debt-for-nature swaps and sustainability-linked bonds with nature KPIs.

Why it matters

The biodiversity finance gap is estimated in the hundreds of billions of dollars annually; credible bond instruments channel private capital toward it — but without robust eligibility criteria and impact metrics, "nature bond" risks becoming the next greenwashing label.

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