- Global Biodiversity 2026
- Chapter 1
Nature is the layer under every other system
Part I describes systems and their couplings. It ranks no country or operator and assesses no authority.
Contents
- ·Edition home
- ·Executive summary
- 1Nature is the layer under every other system
- 2Key findings
- 3Systems and sectors at baseline
- 4Risks and capability
- 5Hot, fire-prone season with land conversion and mining expansion
- 6Readings from the other desks
- 7The 2027 agenda
- 8Systems in depth
- AMethodology
- BData appendix
- CReferences and record
- ·Complete edition, for print
1.1The questions this part answers
Key questions
- Where is biodiversity risk concentrated?
- Which couplings carry biodiversity shocks into other systems?
- Which biodiversity capabilities hold under compound stress?
- What must 2027 evidence measure first?
In this part
- Narrative
- Headline finding
- Lead figure
- Five coupling chapters
- Twelve-domain reading
- Sector screens
- Dependency matrix
- Risk objects
- Capability ladder
- Scenario
- Three lenses
- Portfolio
1.2The argument
Biodiversity is usually reported as a conservation topic: species lists, protected areas, forests. The 2026 evidence reads it as the layer under food, freshwater, health and the economy. IPBES finds that over half of global gross domestic product (USD 58 trillion in 2023) is generated in sectors moderately to highly dependent on nature8, and that all businesses depend directly or indirectly on biodiversity9.
The trend is down on most indicators. Indicators assessed by the Nexus assessment show biodiversity declines of 2 to 6% per decade over the past 30 to 50 years8. The Dasgupta Review estimated that between 1992 and 2014 global produced capital per head doubled while the value of natural capital per head fell by nearly 40%20. None of the 20 Aichi targets was fully achieved by 202021.
The Kunming-Montreal Global Biodiversity Framework set 23 targets for 20304. The first global review finds action under all 23 targets and no target with a fully positive picture, with indicator trends more often negative than positive1. Parties reported USD 32.7 billion of biodiversity finance in 20232, while flows with direct negative impacts on nature were estimated at USD 7.3 trillion9.
Risks compound. Land conversion remains the most widespread driver of change on land7, mining for energy materials reaches protected sites28, and heat is pushing reefs and forests toward thresholds2232. Progress is uneven: fewer than half of reporting Parties considered their national targets on track for any global target1.
Harmful flows are about 33 times the flows directed to conservation and sustainable use. Parties reported USD 32.7 billion of biodiversity finance from all sources for 2023 on a different basis, so the two series do not add29.
| Item | Bar, scaled to the largest value | Value |
|---|---|---|
| Private flows with direct negative impacts | 4900 | |
| Environmentally harmful public subsidies | 2400 | |
| Directed to conservation and sustainable use | 220 |
Source: as cited in the note to this figure. Year 2023.
Figure ID FIG-SECTOR-BIODIVERSITY-GLOBAL-2026-BASELINE-01-003
1.3Twenty couplings between five systems
The biodiversity-centred matrix types the twenty couplings between the five core systems, read for their biodiversity content. Strengths are Nexus estimates (ESTIMATED) from the cited evidence and analogue events; they set the graph that 2027 evidence will test.
Each line is one coupling from one system to another, drawn by the strength the edition assigns. Strengths are Nexus estimates from the cited evidence and analogue events.
- Strong
- Moderate
- Weak
Source: this edition’s coupling matrix (Table 1.1); status Estimated.
| From, to | WAT | ENE | FOO | HLT | BIO |
|---|---|---|---|---|---|
| WAT Water | · | MODERATE hydropower · cooling flows | STRONG irrigation · fisheries | MODERATE supply and disease vectors | STRONG flows · wetland area |
| ENE Energy | MODERATE pumping · treatment | · | MODERATE fuel · fertiliser | MODERATE cooking fuel · clinics | MODERATE mining · dams · land use |
| FOO Food | MODERATE withdrawals · runoff | WEAK bioenergy | · | MODERATE nutrition · pesticides | STRONG land conversion · overharvest |
| HLT Health | WEAK workforce | WEAK workforce | WEAK labour | · | WEAK residues |
| BIO Biodiversity | MODERATE catchments · filtration | WEAK biomass · hydrology | STRONG pollination · soils · pests | MODERATE zoonoses · medicines | · |
| Strength: strong, moderate or weak; a Nexus estimate (status Estimated) from cited evidence and analogue events. The scale is defined in Annex A. | |||||
Transmission paths
- 01
FOO → BIO → FOO
Land conversion for food erodes pollination, soils and pest control, which feed back into yields.
Reported pollinator-dependent crops 35% of volume10
- 02
MIN → BIO
Mining for energy materials overlaps protected sites and wilderness.
Reported mining overlap study28
- 03
CLI → BIO
Heat stress bleaches reefs and raises extinction risk on land.
- 04
FIN → BIO
Flows with negative impacts exceed flows to nature by about 33 times.
- 05
BIO → HLT
Land-use change and species-rich forests raise zoonotic emergence risk.
Inferred hotspot analysis29
1.4Reinforcing loops
A shock entering either system of a loop can return amplified through the other.
| Loop | First direction | Second direction |
|---|---|---|
| FOO and BIO | Food to biodiversity: land conversion · overharvest | Biodiversity to food: pollination · soils · pests |
| A causal-loop reading of the matrix (Sterman, Business Dynamics, 2000): structural, from estimated strengths, not a measured feedback. | ||
Notes
Numbers are the edition’s reference numbers, so a note reads the same in every chapter. The full list, with every source and its licence, is in Annex C. Annex C, references
- 8IPBES, Summary for Policymakers of the Thematic Assessment Report on the Interlinkages among Biodiversity, Water, Food and Health (Nexus assessment), accepted at the eleventh session of the Plenary, Windhoek. Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, Bonn. Observation year 2024. Accessed 2026-11-03.back
- 9IPBES, Summary for Policymakers of the Thematic Assessment Report on Business and Biodiversity, considered at the twelfth session of the Plenary, Manchester, 2026 (layout edition of 16 June 2026). Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, Bonn. Observation year 2023 (financial flows). Accessed 2026-11-03.back
- 20Dasgupta, P., The Economics of Biodiversity: The Dasgupta Review, Full Report, HM Treasury, London, 2021. Observation year 2014 (wealth series 1992 to 2014). Accessed 2026-11-03.back
- 21Secretariat of the Convention on Biological Diversity, Global Biodiversity Outlook 5, Montreal, 2020. Convention on Biological Diversity, Montreal. Observation year 2020. Accessed 2026-11-03.back
- 4Conference of the Parties to the Convention on Biological Diversity, decision 15/4, Kunming-Montreal Global Biodiversity Framework, Montreal, December 2022. Convention on Biological Diversity, Montreal. Observation year 2022. Accessed 2026-11-03.back
- 1Secretariat of the Convention on Biological Diversity, State of Biodiversity Action: Summary and Key Messages of the Global Report on Collective Progress in the Implementation of the Kunming-Montreal Global Biodiversity Framework, Montreal, 2026. Observation year 2026 (national reports of 2026; indicator data to 2025). Accessed 2026-11-03.back
- 2Secretariat of the Convention on Biological Diversity, Global Report on Collective Progress in the Implementation of the Kunming-Montreal Global Biodiversity Framework (document CBD/COP/17/INF/7), full report, Montreal, 2026. Observation year 2023 (finance 2020 to 2023; protected area coverage 2025). Accessed 2026-11-03.back
- 7IPBES, Summary for Policymakers of the Global Assessment Report on Biodiversity and Ecosystem Services, Bonn, 2019. Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, Bonn. Observation year 2019 (evidence mostly to 2016). Accessed 2026-11-03.back
- 28Sonter, L.J., Dade, M.C., Watson, J.E.M. and Valenta, R.K., Renewable energy production will exacerbate mining threats to biodiversity, Nature Communications 11, 4174, 2020 (open-access abstract read). Springer Nature. Observation year 2020. Accessed 2026-11-03.back
- 22Global Tipping Points, Global Tipping Points Report 2025 (summary of key messages on the programme page), University of Exeter and partners, Exeter, 2025. Observation year 2025. Accessed 2026-11-03.back
- 32IPCC, Climate Change 2022: Impacts, Adaptation and Vulnerability, Summary for Policymakers, Contribution of Working Group II to the Sixth Assessment Report, Geneva, 2022. Intergovernmental Panel on Climate Change, Geneva. Observation year 2022. Accessed 2026-11-03.back
- 10IPBES, Summary for Policymakers of the Assessment Report on Pollinators, Pollination and Food Production, Bonn, 2016. Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, Bonn. Observation year 2015 (values in 2015 US dollars). Accessed 2026-11-03.back
- 18NOAA Coral Reef Watch, Current Global Bleaching: Status Update and Data Submission (status page). National Oceanic and Atmospheric Administration, College Park. Observation year 2025 (event from 1 January 2023). Accessed 2026-11-03.back
- 29Allen, T. et al., Global hotspots and correlates of emerging zoonotic diseases, Nature Communications 8, 1124, 2017 (open-access abstract read). Springer Nature. Observation year 2017. Accessed 2026-11-03.back
