Framework explainer

CSRD / ESRS E1 and physical climate risk — a plain-language explainer

2026-09-06 · Framework explainer · 3 sources

What the CSRD requires companies to report under ESRS E1, where physical climate risk lives inside the standard, what double materiality means in practice, and what kind of evidence a physical-risk disclosure needs to rest on.

What the CSRD changes

The Corporate Sustainability Reporting Directive (Directive (EU) 2022/2464) moves sustainability reporting from voluntary narrative to mandatory, assured disclosure. Companies in scope must report using the European Sustainability Reporting Standards (ESRS), adopted as Commission Delegated Regulation (EU) 2023/2772, and the report must be assured by a statutory auditor or an accredited independent assurance provider. The directive applies in waves to large companies and listed SMEs; thresholds and timing have been amended since adoption, so the current text — not a summary, including this one — decides whether a given company is in scope.

Where physical risk lives in ESRS E1

ESRS E1 is the climate-change standard. Alongside transition plans and greenhouse-gas emissions, it expects a company to identify its material physical climate risks — acute hazards such as floods, wildfires and storms, and chronic shifts such as heat stress, water stress and sea-level rise — and to disclose their anticipated financial effects: how they could affect assets, operations and cash flows over time. Scenario analysis appears here as well: companies are expected to consider how their strategy and business model hold up under stated climate pathways. Physical-risk disclosure is therefore not a side note in ESRS E1; it is one of its load-bearing walls.

Double materiality, in one paragraph

Double materiality means a topic is material if it matters in either of two directions. Outside-in (financial materiality): how does climate change affect the company's value — its assets, liabilities, revenues and cost of capital? Inside-out (impact materiality): how does the company affect the climate and environment? Physical climate risk sits mainly in the outside-in direction, but the two meet: a company whose operations degrade a floodplain, for example, can increase the very hazard that later hits its own balance sheet.

What evidence a physical-risk disclosure needs

A defensible physical-risk disclosure rests on location-level evidence, not sector averages. In practice that means: the coordinates of material sites and assets; the hazards screened at those coordinates; the claim status of each result — was it OBSERVED (a measurement), DOCUMENTED (an official record), MODELLED (a declared model output) or REPORTED (a third party's account); and the stated limitations of each layer. A disclosure that asserts low physical risk without location-level evidence is exactly the kind of statement assurance providers are learning to challenge.

Boundaries are a feature, not a defect

No evidence platform covers every ESRS requirement, and honesty about boundaries is what makes a disclosure auditable. Talaix sustainability reports tag each mapped requirement as covered by evidence, partially covered, or not covered: covered by evidence means platform evidence supports the element, partially covered means some elements remain for the company to supply, and not covered means the platform cannot currently supply evidence and the company must provide its own or state the boundary. A report that claims full coverage without boundaries should attract more scepticism, not less.

What this means for banks and insurers

CSRD reports filed by borrowers and insureds become inputs to financial institutions' own processes: EBA Pillar 3 ESG templates expect banks to collect counterparty-level ESG information, and insurers reading a corporate disclosure can cross-check its physical-risk statements against independent screening evidence. The same discipline applies on both sides of the table — read the claim status and the boundaries before the conclusion.

Sources

Related tools

Sustainability report toolTalaix Academy — EU framework map module

Related glossary: csrd esrs double_materiality physical_risk scenario_analysis