[8] Bennett and Ruef (2016), Alliance for Green Infrastructure: State of Watershed Investment 2016, https://www.forest-trends.org/publications/alliances-for-green-infrastructure/.
[7] Bennett, G. et al. (2026), Gaining Ground: State of Private Investment in Nature.
[23] Bromley, F. (2024), Biodiversity Finance Factbook: Biodiversity Cop16 Edition, https://assets.bbhub.io/professional/sites/24/Biodiversity-Finance-Factbook_COP16.pdf#page=48&zoom=100,0,0.
[1] CBD (2026), Revised Global Report on Collective Progress of Implementation of the Kunming-Montreal Global Biodiversity Framework - released 26 July, https://www.cbd.int/doc/c/5611/c35f/aa96bdcd816f5952d586a777/sbstta-28-02-add1-rev1-en.pdf.
[16] CBD (2025), Monitoring Framework for the Kunming-Montreal Global Biodiversity Framework, https://www.cbd.int/doc/decisions/cop-16/cop-16-dec-31-en.pdf.
[27] Deutz, A. et al. (2020), Financing Nature: Closing the global biodiversity financing gap..
[9] EC (2024), Annex: Classification of environmental purposes (CEP) and policy areas, https://ec.europa.eu/eurostat/documents/1798247/12177560/Annex_CEP+and+policy+areas.pdf.
[15] EUROSTAT (2024), Eurostat, Annex: Classification of Environmental Purposes (CEP) and Policy Areas, Version April 2024, https://ec.europa.eu/eurostat/documents/1798247/12177560/Annex_CEP+and+policy+areas.pdf.
[18] EUROSTAT (2011), Manual on sources and methods for the compilation of COFOG Statistics: Classification of the Functions of Government (COFOG), https://ec.europa.eu/eurostat/web/products-manuals-and-guidelines/-/KS-RA-11-013 (accessed on 16 April 2024).
[17] Eurostat (2019), Manual on sources and methods for the compilation of COFOG statistics: Classification of the Function of Government (COFOG), 2019 edition, https://ec.europa.eu/eurostat/documents/3859598/10142242/KS-GQ-19-010-EN-N.pdf/ed64a194-81db-112b-074b-b7a9eb946c32?t=1569418084000.
[6] OECD (2026), Biodiversity and development finance 2015-2024, https://one.oecd.org/document/DCD/DAC/ENV(2026)18/en/pdf.
[4] OECD (2026), Mobilising Public and Private Finance for Biodiversity: Good Practices in Unlocking Capital for Nature, OECD Publishing, Paris, https://doi.org/10.1787/e2b996a1-en.
[21] OECD (2026), Private Philanthropy for Development (Third Edition): Taking Stock of Philanthropy’s Contribution to Development, https://www.oecd.org/en/publications/private-philanthropy-for-development-third-edition_98e676c0-en/full-report/methodology_d1422303.html.
[10] OECD (2025), Converged Statistical Reporting Directives for the Creditor Reporting System (CRS) and the Annual DAC Questionnaire, https://one.oecd.org/document/DCD/DAC(2024)40/ADD2/FINAL/en/pdf.
[5] OECD (2025), Scaling Up Biodiversity-Positive Incentives: Delivering on Target 18 of the Global Biodiversity Framework, OECD Publishing, Paris, https://doi.org/10.1787/19b859ce-en.
[20] OECD (2024), Biodiversity and Development Finance 2015-2022: Contributing to Target 19 of the Kunming-Montreal Global Biodiversity Framework, OECD Publishing, Paris, https://doi.org/10.1787/d26526ad-en.
[3] OECD (2020), “A Comprehensive Overview of Global Biodiversity Finance”, OECD Environment Policy Papers, No. 47, OECD Publishing, Paris, https://doi.org/10.1787/25f9919e-en.
[2] OECD (2019), The Post-2020 Global Biodiversity Framework: Targets, indicators and measurability implications at global and national level.
[25] Quartson, P. et al. (2026), Voluntary Registry Offsets Database v2026-06, Berkeley Carbon Trading Project, University of California, Berkeley, https://gspp.berkeley.edu/berkeley-carbon-trading-project/offsets-database (accessed on 7 January 2024).
[24] Smith, M. et al. (2025), State of Investment in Nature-based Solutions for Water Security: Doubling Down on Nature 2025, https://www.forest-trends.org/wp-content/uploads/2025/06/Doubling-Down-on-Nature.pdf.
[11] TOSSD (2026), TOSSD Reporting Instructions, https://www.tossd.org/content/dam/tossd/en/methodology-pdfs/reporting_instructions.pdf.
[28] UNDP (2024), BIOFIN Workbook 2024, https://www.biofin.org/knowledge-product/biofin-2024-workbook/.
[12] UNDP (2018), BIOFIN 2018 Workbook, https://www.biofin.org/knowledge-product/biofin-2018-workbook/.
[22] UNEP (2026), Nature in the red: Powering the trillion dollar nature transition economy - State of finance for nature 2026, United Nations Environment Programme, https://doi.org/10.59117/20.500.11822/49119.
[14] UNSD (2025), Draft Guidance Note C4: Primary and Secondary Purpose: Version for Discussion at the SEEA Central Framework Technical Committee Meeting, 17-21 November 2025; EEA Central Framework 2028 Update, https://seea.un.org/sites/default/files/2026-05/seea_cf_update_gn_c4_primary_secondary_for_tc_nov_2025.pdf.
[13] UNSD (2000), CLASSIFICATIONS OF EXPENDITURE ACCORDING TO PURPOSE, https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/M84_complete_english.pdf.
[19] UNSTATS (2024), Classification of Environmental Purposes, https://unstats.un.org/UNSDWebsite/statcom/session_55/documents/BG-4e-CEP-E.pdf (accessed on 20 February 2024).
[26] Van Winkle, C. et al. (2015), “Biodiversity Policy Response Indicators”, OECD Environment Working Papers, No. 90, OECD Publishing, Paris, https://doi.org/10.1787/5jrxd8j24fbv-en.