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Aipedia: Ecologists and environmental consultants
AI can help with baseline review and drafting in an ecological impact assessment, but ISEP expects tools to be declared in the EIA report and every output checked. A flawed ecology chapter can expose a consent to legal challenge.
Part of: AI in Ecologists and environmental consultants
In short
Ecology chapters of environmental statements assess the significance of effects on habitats and species and set out mitigation. ISEP’s November 2025 advice note says practitioners remain responsible for AI outputs, should check them against the evidence, keep an audit trail and state in the EIA report which tool was used, when and why. The Planning Inspectorate requires AI use in casework evidence to be declared. The Castle Way Energy NSIP scoping report shows one approach: AI was used for baseline review in some chapters but not in ecology. A flawed chapter can delay a scheme and invite challenge.
An ecology chapter brings together desk study, field survey, valuation of ecological features, impact characterisation, significance, mitigation and residual effects. AI tools are used to summarise baseline reports, draft descriptive sections, cross-check consistency between the chapter, appendices and the non-technical summary, and review consultation responses.
The judgement-heavy steps, such as valuing features, assessing significance and concluding on residual effects, are where AI is weakest and where errors do most damage. Planning consultants who coordinate the whole statement face related risks, covered in AI summaries of EIA and technical reports.
ISEP’s advice note Using AI in EIA was launched on 20 November 2025 (launch report). As its lead author described it for CIWEM, the note expects practitioners to:
The Planning Inspectorate guidance requires intentional AI use in casework evidence, including NSIP material, to be declared with the checks made, and says each expert declares for their own documents. The CIEEM Code adds the duties of competence (clause 3), accuracy (clause 4), supervision (clause 6) and responsibility (clause 10). Our guide to CIEEM, ISEP and PINS sets these out in full.
The Castle Way Energy NSIP EIA scoping report (June 2026, Planning Inspectorate reference EN0110037) includes an AI Usage Statement at Appendix 5.1 that cites the Planning Inspectorate guidance. Two general-purpose generative AI assistants were used only for baseline information review and summarisation in some chapters. No AI was used in the Ecology and Biodiversity chapter. Outputs were to be verified by competent experts, and AI was not used for professional judgement, significance or conclusions.
That is one project’s choice, not a rule, but it shows how a project team can draw clear boundaries and document them.
Illustrative scenario. An ecologist uses AI to summarise baseline survey reports for an ES chapter. The summary drops a record of a notable species from one appendix, and the chapter values the affected habitat lower than the survey supports. Mitigation is designed on that basis. After consent, an objector argues the environmental information was inadequate. Even if the challenge fails, the developer’s programme is held up and it claims its costs from the consultant, pointing to the absence of any audit trail showing the summary was checked.
Errors in the chapter also feed into habitats regulations assessments and net gain calculations that rely on the same baseline.
A developer’s claim for delay and costs caused by a negligent ecology chapter is a professional negligence claim, and PI commonly responds subject to the policy terms. Large schemes can generate large delay claims, so limits matter. Insurers may ask how the chapter was produced, and a documented audit trail and AI usage statement make the work easier to defend. The environmental consultants PI guide covers limits and common exclusions.
For ecology chapters, the ISEP note translates into a few working rules:
Apex arranges PI for ecologists and environmental consultants who author EIA chapters. A broker reviews your cover and how your policy treats AI-assisted assessment work. See the AI in ecology consultancy overview.
ISEP’s advice note says the EIA report should state which tool was used, when and for what purpose. Where the material is evidence in Planning Inspectorate casework, its guidance requires intentional AI use to be declared, and each expert declares for their own documents.
It should not. ISEP treats AI as a support tool and not a substitute for judgement, and the Castle Way Energy statement excluded AI from professional judgement, significance and conclusions. Valuation and significance are matters for a competent ecologist.
If the developer claims that your negligent chapter caused its losses, PI commonly responds to that claim, subject to the terms and limit. Defending the planning decision itself is a matter for the decision maker and the developer, not your PI.
Tell us about your firm and the work you do. A broker will review how your current PI treats AI-assisted work, or arrange new cover. No fee for a quote. Or call 0117 325 0027.
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