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ISSB

The ISSB develops a global baseline of sustainability disclosure standards, enabling consistent, comparable, and reliable reporting for capital markets.

International Sustainability Standards Board

Description

The ISSB was established by the IFRS Foundation to create a comprehensive global baseline of sustainability disclosure standards. Its standards, such as IFRS S1 (General Requirements) and IFRS S2 (Climate-related Disclosures), are designed to improve the quality and comparability of sustainability-related financial reporting worldwide. By aligning with existing frameworks like TCFD, the ISSB strengthens investor confidence and enables capital markets to integrate sustainability considerations into decision-making.

Type

Standard-setting body

Jurisdiction

Global

Sector

Cross-sector, capital markets, finance, corporate reporting

Established / Active Since

2021

Maintained By / Organised By

IFRS Foundation

Official Resources

Relationship to Lemu

Lemu’s Nature Intelligence strengthens the “Sustainability-related financial disclosures” that the ISSB requires, by making biodiversity and ecosystem data measurable, comparable, and scientifically verifiable — ensuring that disclosures go beyond carbon to capture true nature-related dependencies and risks.

Example in Practice

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A multinational bank integrates ISSB-aligned disclosures by adding biodiversity and water dependency metrics into their annual reporting.
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A global mining company uses ISSB standards to disclose climate and nature risks, combining financial impact data with local ecosystem dependencies.
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An asset manager applies ISSB requirements across its portfolio, tracking both climate resilience and biodiversity exposure of investee companies.

Cross-Mapping with Other Frameworks

  • TNFD: ISSB complements TNFD by providing a disclosure baseline, while TNFD offers detailed guidance on assessing and reporting nature-related risks and opportunities.
  • SBTN: ISSB requires disclosure of material sustainability impacts; SBTN provides science-based methods and targets that companies can use to generate credible data for these disclosures.
  • TCFD: ISSB’s IFRS S2 is directly built on TCFD recommendations, ensuring climate disclosures remain consistent and comparable.
  • CSRD: The EU’s CSRD requires more detailed sustainability reporting, but ISSB provides a global baseline that CSRD can align with to ensure interoperability.

Updated on Aug 30, 2025