ESRS E4, Biodiversity and ecosystems
The hardest CSRD standard to document, a NORMAXIS specialty
ESRS E4 is widely seen as the most difficult CSRD standard: it requires companies to disclose their impacts and dependencies on biodiversity and ecosystems, and, where material, a biodiversity transition plan. Unlike climate, biodiversity has no single metric; the data is local, seasonal and multi-dimensional. NORMAXIS produces the underlying evidence through the proprietary BPS tool (Biodiversity Performance Score), operated by IRICE as an independent third party under ISO/IEC 17065, and connects it to TNFD, SFDR PAI 7 and EU Taxonomy DNSH criterion 6.
What E4 requires
Impacts, dependencies, transition plan.
Impacts
Land-use change, pollution, resource use and their effects on species and habitats, across own operations and the value chain.
Dependencies
How the business relies on ecosystem services (water, pollination, soil, climate regulation), and the risk their degradation creates.
Transition plan
Where material, a plan compatible with halting and reversing biodiversity loss, with targets, actions and monitoring.
The NORMAXIS answer
Measurable biodiversity data, independently verified.
Reporting on biodiversity is only credible if the underlying data is measurable and independent. The BPS (Biodiversity Performance Score) assesses the state and management of biodiversity through 70+ criteria on an A–G scale, aligned with ESRS E4 and SFDR. It is operated by IRICE as an independent third party under ISO/IEC 17065, the measurement (ARKENOR) and the verification (IRICE) are never carried out by the same team, which is the condition of impartiality and of the report's credibility.
FAQ
Frequently asked questions
Requirement
Biodiversity reporting is site-based and quantified.
Where biodiversity is material, ESRS E4 requires disclosure of impacts, dependencies, risks and opportunities, with quantified metrics and a transition plan. Unlike climate, there is no single unit: biodiversity is reported through several indicators tied to particular places, which makes site-level data unavoidable.
That is the practical difficulty. A group can estimate its carbon footprint from purchasing data; it cannot estimate its biodiversity impact the same way. It needs to know which of its sites hold ecological value, and what it does to them.
Evidence
Where the data comes from decides whether it survives audit.
Site-level ecological data comes from field survey, not from desk estimation, and surveys follow the four-season calendar. Groups that start their E4 disclosure in the reporting year discover that the underlying evidence takes longer to produce than the report does.
Third-party verification changes the weight of what is disclosed. A biodiversity performance assessed by an accredited body enters a report differently from a self-declared figure, which is why the group keeps its certification activities in a separate entity.
Going further
Related pages.
ESRS E4 rests on evidence produced elsewhere.
- Double materiality assessment — what triggers E4
- Biodiversity transition plan — the forward-looking part of E4
- Four-season surveys — where site-level data comes from
- Ecological expertise — the wider set of procedures
- Effinature biodiversity certification — third-party verified performance
- TNFD nature-related disclosures — the adjacent framework
- Documenting estate biodiversity — E4 applied to a property portfolio
- Working with agri-food groups — where E4 is almost always material
Scope an ESRS E4 assignment
Measurable biodiversity data via the BPS, structured impact/dependency analysis, and a transition plan, with verification handled independently by IRICE.
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