Public Sector Climate Reporting Standard Seen as Boost for Sustainable Investment

ADB’s new IPSASB SRS 1 standard introduces the first global climate disclosure framework for governments, helping public institutions report climate-related risks, strengthen fiscal resilience, and improve transparency. The framework is expected to support better policymaking, attract sustainable investment, and enhance accountability as climate risks increasingly affect economic growth and public finances.

Climate change is no longer just an environmental concern, it is increasingly shaping government finances, economic growth, and investment decisions. A new report by the Asian Development Bank (ADB) highlights the launch of the International Public Sector Accounting Standards Board's Sustainability Reporting Standard 1 (IPSASB SRS 1), the first global climate disclosure framework specifically designed for governments and public sector institutions.

The standard comes at a crucial time for Asia and the Pacific, which is home to around 60% of the world's population and includes eight of the world's ten most climate-vulnerable countries. Climate-related disasters are placing growing pressure on public finances through damaged infrastructure, higher spending needs, lower tax revenues, and rising borrowing costs.

Why the New Standard Matters

Until now, climate disclosure standards have mainly focused on private companies. Governments lacked a common framework to explain how climate risks affect public services, budgets, and long-term development plans. IPSASB SRS 1 aims to fill this gap.

The standard, approved in 2025 and launched in 2026, will become effective from January 2028. It applies to government ministries, departments, agencies, local authorities, statutory bodies, public funds, and international governmental organizations.

Under the framework, public entities will be required to report on four key areas: governance, strategy, risk management, and performance metrics. They must explain how they identify climate risks, integrate them into decision-making, and measure progress toward climate-related goals.

Economic Benefits for Governments and Investors

ADB argues that climate disclosure can strengthen fiscal resilience and improve public financial management. Research cited in the report shows that climate vulnerability significantly increases sovereign borrowing costs. The International Monetary Fund estimates that climate-related disasters reduce annual potential growth in Pacific Island countries by about 1.4%.

Better disclosure can help governments identify risks earlier, improve infrastructure planning, and build stronger adaptation strategies. It can also boost investor confidence by providing clear information on climate preparedness.

The timing is significant because Asia-Pacific's sustainable finance market is expected to grow at a compound annual growth rate of 27.3%, reaching approximately $563 billion by 2030. Investors increasingly seek reliable climate-related information before committing capital, making transparency a competitive advantage for countries seeking financing.

Major Opportunities and Challenges Ahead

For international development partners such as multilateral development banks, climate funds, and donor agencies, the new standard could improve the quality and comparability of climate-related information across countries. This would support better project design, risk assessment, and allocation of climate finance.

Private-sector stakeholders, including investors, insurers, banks, infrastructure developers, and sustainability consultants, also stand to benefit. More transparent public-sector reporting can reduce uncertainty, improve risk pricing, and create new opportunities in climate analytics, emissions accounting, data management, and sustainability advisory services.

However, implementation will not be easy. Many governments face challenges related to limited technical expertise, weak climate data systems, and difficulties measuring greenhouse gas emissions. Reporting on Scope 3 emissions, which cover emissions across an organization's broader value chain, remains particularly complex. To ease the transition, IPSASB has provided a three-year grace period before mandatory Scope 3 reporting.

What Policymakers Should Do Next

ADB recommends that governments begin preparing well before the 2028 implementation deadline. Priority actions include assessing climate-readiness within public institutions, strengthening data collection systems, developing country-specific reporting guidance, and investing in technical skills related to climate risk analysis and scenario modelling.

The United Kingdom's experience demonstrates that a phased approach can work. By gradually expanding disclosure requirements and providing technical guidance, UK government agencies have successfully integrated climate reporting into their governance systems.

The broader message of the report is clear: climate disclosure is rapidly becoming a key element of public sector accountability. Governments that adopt robust reporting systems early will be better positioned to attract investment, access climate finance, strengthen resilience, and support sustainable economic development. As climate risks continue to grow, transparent reporting may become as important to public sector credibility as traditional financial reporting itself.