OECD says biodiversity finance continues to rise ahead of COP17
Global funding for biodiversity reaches an estimated USD 74.9 billion to USD 92.4 billion a year between 2023 and 2025, reflecting gains across public and private sources. The new assessment arrives as countries prepare for COP17 in Yerevan, Armenia, from 19 to 30 October 2026, with financing seen as central to efforts to halt biodiversity loss.
Highlights
- OECD report finds global biodiversity finance reached USD 75.0 billion to USD 92.5 billion annually in 2023-2025, with two-thirds from public domestic expenditure.
- Public international biodiversity finance averaged USD 16.1 billion yearly, and private domestic and international finance added USD 12.9 billion, reflecting broad increases since 2018.
- OECD calls for improved biodiversity finance data consistency and transparency, influencing COP17 policy talks in Yerevan this month.
OECD analysis maps funding growth
As reported by the OECD, its new report, An Overview of Global Biodiversity Finance, finds that biodiversity finance is increasing across both public and private channels.Public domestic expenditure represents about two-thirds of total biodiversity finance, estimated at USD 46.0 billion to USD 63.5 billion a year in 2023-2025. Public international finance, including bilateral and multilateral official development assistance, contributes an average of USD 16.1 billion a year, while private domestic and international finance adds USD 12.9 billion.
The analysis also points to a broad-based rise over time. Public domestic spending increases by 16% between 2018-20 and 2023-24 across 63 countries with consistent time-series data, international public finance rises by 94% over the same period, and private investment grows by 73% between 2018-20 and 2023-25.
Finance tracking seen as key to policy action
Scaling up funding remains a central challenge for reversing biodiversity loss, and the report says better tracking and reporting can help governments and institutions understand where capital is flowing and where gaps persist.The OECD proposes options to improve the consistency, international comparability, coverage and transparency of biodiversity finance data. Those findings are likely to feed into discussions ahead of the 17th meeting of the Conference of the Parties to the Convention on Biological Diversity, scheduled in Yerevan later this month.
Our earlier article on the Philippines’ bid to join the Tropical Forests Forever Facility explained how the country aims to secure fast-track funding for tropical forest protection and restoration. We also outlined the scale of past tree-cover losses and the broader funding gap, with the facility designed to mobilize billions in capital and provide per-hectare payments to keep forests standing.
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