IFRS S2 Climate Disclosures Explained
IFRS S2 aims to improve trust, consistency, and comparability across climate disclosures by providing a structured framework for organisations to disclose climate-related risks and opportunities that influence enterprise value. Developed by the International Sustainability Standards Board (ISSB), it builds on and supersedes the Taskforce on Climate-related Financial Disclosures (TCFD) framework. As organisations prepare for ever-tighter sustainability reporting requirements, IFRS S2 is essential for credible, investor-focused climate communication.
The introduction of IFRS S2 reflects the growing demand for climate disclosures that meet investor and financial market needs. Investors want to understand how climate issues influence financial performance, business resilience and long-term strategy. IFRS S2 builds on the TCFD principles, integrating them into a consistent reporting framework that links climate considerations to broader financial reporting.
IFRS S2 connects closely with other sustainability frameworks. Companies already working with the GRI Standards can use IFRS S2 to complement their broader impact disclosures and strengthen overall reporting. Similarly, companies moving from the SASB to ISSB standards will find that IFRS S2 aligns with financially relevant climate indicators. Our article, SASB vs ISSB: What companies need to know, explains how the two frameworks work together and provides advice to support the transition.
IFRS S2 requirements
IFRS S2 structures disclosures in four parts: governance, strategy, risk management, and metrics and targets. Each guide helps companies explain how climate issues affect their business models, aiming to make climate disclosures more consistent across companies and more useful to financial stakeholders.
Governance
The governance section describes the board and senior leadership role in monitoring, managing and overseeing climate-related risks and opportunities. This includes an explanation of the committees, reporting lines, and roles and responsibilities in monitoring climate performance. Effective governance disclosures help investors understand whether climate risks and opportunities receive the attention needed at a strategic level.
Strategy
The strategy section explains how climate risks and opportunities shape business strategy in the short, medium, and long term. Companies must describe how climate issues influence the products and services they produce, supply chain and sourcing decisions, and market positioning. Forward-looking analysis is essential for meeting IFRS S2 expectations .
Scenario analysis plays a central role, detailing how consideration of different possible futures and climate pathways have influenced decisions on strategy, financial performance and operational resilience. This analysis helps investors understand how prepared a company is to face potential physical and transition risks.
Risk management
Companies must explain how they identify, assess and manage climate-related risks both physical and transition risks. This includes how monitoring and management of climate-related risks are integrated with existing risk management systems and processes and not treated as a standalone issue.
Metrics and targets
The final section outlines the company’s performance in relation to climate-related risks and opportunities. It should include a detailed breakdown of greenhouse gas emissions across scope 1, 2 and 3, supported by a clear description of the methodologies used to calculate those emissions.
Companies are expected to disclose climate-related targets, such as emissions reduction goals, and explain progress toward these targets. These disclosures help investors assess whether companies have credible plans for reducing climate risk exposure and capitalising on the opportunities of a shift to a low-carbon economy.
How IFRS S2 links to SASB and GRI
ISSB — that developed IFRS S2 — and SASB both fall under the umbrella of the IFRS Foundation and are closely linked. ISSB has used the SASB standards as the basis for its industry-specific guidance — for example the most relevant metrics and appropriate calculation methodology for each industry. ISSB encourages organisations to use the SASB Standards as supporting guidance and is committed to maintaining and enhancing the SASB standards to support IFRS S2 adoption. The connection between the two reporting frameworks is covered in more detail in SASB vs ISSB: What companies need to know.
Companies that use the GRI Standards for broad sustainability reporting can also integrate IFRS S2 into their existing disclosures. While GRI focuses on impacts, IFRS S2 focuses on financially material climate risks. Many organisations use both frameworks to meet the growing expectations of regulators and stakeholders for companies to consider how their activities affect people and the planet alongside the financial implications of sustainability-related risks and opportunities. In GRI Standards: What’s changing in 2026, we provide a deeper explanation of GRI’s role within a multi-framework reporting environment.
Who needs to apply IFRS S2
IFRS S2 serves as a global baseline for climate-related disclosures and is quickly becoming a reference point for regulators designing climate disclosure requirements. More than 30 countries across the Americas, Asia Pacific, Europe and the Middle East have announced plans to adopt the ISSB Standards as the basis for mandatory disclosure requirements. Some like Brazil and Kenya have adopted the standard unchanged, others have introduced minor modifications. For example, the UK has proposed a slightly longer transition phase compared with the core standard, while China has strengthened the materiality requirement, adopting double materiality as the basis for all reporting.
Aligning reporting with IFRS S2 creates consistent, reliable climate disclosures, not only increasing stakeholder trust, but preparing the groundwork for evolving mandatory sustainability reporting requirements. This is particularly relevant for companies with global operations or listings on multiple stock exchanges and financial markets.
How IFRS S2 affects reporting teams
Preparing for IFRS S2 involves significant changes to internal reporting systems. Climate-related data must be traceable, consistent and supported by evidence. This level of rigour requires collaboration across sustainability, finance and executive leadership teams. Companies should review their scenario analysis capabilities and ensure that management of climate risks is fully integrated into strategic planning. The scope and complexity of these requirements mean companies may need new tools or systems to manage climate data effectively.
Reporting teams should also prepare for assurance requirements. As climate disclosures become subject to external review, companies must document methodologies, data sources and internal controls. These practices support credible reporting and align with future regulatory expectations.
Companies working toward compliance with the EU Corporate Sustainability Reporting Directive (CSRD) will find that IFRS S2 complements their climate disclosures, though Europe — like China — has adopted the tougher double materiality approach. We will explore this connection further in How to align existing reports with CSRD requirements.
Steps to prepare for IFRS S2
Here are our top tips to prepare for IFRS S2.
1. Evaluate current climate data systems
Assess whether existing systems are suitable to produce the required granularity and accuracy of emissions data and other climate-related metrics. This includes reviewing data sources, calculation methods and the approach to documentation to ensure data is fully traceable.
2. Review governance structures
IFRS S2 requires detailed governance disclosures. Review current policies and procedures to monitor, manage and oversee climate-related issues and make updates if climate-related risks and opportunities do not receive consistent attention.
3. Strengthen scenario analysis
Scenario analysis helps companies test resilience under different climate futures. Revisit your approach, including modelling methods, how stakeholders are involved and the frequency of updates, and identify where improvements are needed.
4. Map to other frameworks
If you’re already using SASB or GRI, map existing disclosures against IFRS S2 requirements to determine what is already covered and what needs to be added. This reduces duplication and creates a more integrated reporting approach.
5. Prepare for assurance
Establish documentation systems that support external assurance. This includes collecting detailed records of data sources, governance processes and risk assessments.
How Context Sustainability helps companies apply IFRS S2
Context Sustainability works with organisations to prepare for IFRS S2 and related climate disclosure requirements. Our advisory team helps clients integrate climate considerations into reporting systems, strengthen governance, and build credible disclosures that meet investor and regulatory expectations.
We support organisations as they review their climate data, develop scenario analysis frameworks, and map their existing reporting against IFRS S2. Our approach focuses on clarity, evidence and practical implementation. Companies preparing for upcoming reporting cycles can work with us to build systems that reflect best practices and support long-term resilience.
Frequently Asked Questions
What differentiates IFRS S2 from traditional environmental disclosure frameworks?
IFRS S2 is specifically designed to meet the information needs of capital markets by focusing on how climate-related risks and opportunities influence an organisation’s financial position, performance, cash flows, and long-term enterprise value. While broader frameworks focus primarily on outward organisational impacts on the planet, IFRS S2 links climate factors directly to standard financial reporting systems.
Why is climate scenario analysis a critical component of the IFRS S2 framework?
Scenario analysis serves as a strategic testing tool that requires companies to model how distinct physical and transition climate pathways affect their operational resilience and asset valuations. This forward-looking approach helps investors understand the potential financial impacts on business models under varying futures, such as high-emission or low-carbon economies.
How does IFRS S2 address the disclosure of value chain emissions across different scopes?
The standard mandates the explicit disclosure of greenhouse gas emissions across all three operational boundaries. This includes direct emissions from owned sources (Scope 1), indirect emissions from purchased electricity or energy inputs (Scope 2), and broader upstream and downstream value chain emissions (Scope 3), requiring organisations to document the underlying calculation methodologies and data sources used.
In what ways can a company integrate pre-existing voluntary metrics into an IFRS S2 disclosure report?
Organisations can streamline disclosure by mapping their current reporting formats directly to the four core pillars of governance, strategy, risk management, and metrics. Industry-specific metrics previously captured under the SASB Standards can be utilised as supporting guidance, while impact data from GRI reports can be adapted to meet the financial materiality criteria required.
