The central theme is “From Pledges to Proof,” focusing on ensuring that commitments to sustainability are realised and lead to tangible outcomes. This involves addressing integrity risks, promoting ethical practices in climate finance and procurement, and building trustworthy systems, particularly in emerging economies. The discussion highlights the critical need to strengthen integrity and anti-corruption measures within growing climate and sustainability finance systems.

The B20 Integrity and Compliance Task Force’s policy paper outlines several integrity risks. These include:

• Financial mismanagement and misappropriation: This covers issues like bribery, embezzlement, fraud, and the diversion of funds from their intended climate-related purposes, especially in regions with weaker oversight.
• Sustainability-linked corruption: This refers to financial crimes and governance failures that directly harm the environment and hinder climate change efforts, often driving organised crime in industries like illicit deforestation, mining, and wildlife trade.
• Transparency issues: A significant lack of transparency in the flow of climate financing and timely information exchange across borders makes it difficult to track how funds are used and assess their impact, as evidenced by significant unaccounted sums in World Bank climate finance projects.

The B20 proposes several solutions for both the public and private sectors:

• Public Sector: Implement a global climate finance transparency register and develop a “climate finance red flag index” for early risk detection related to governance, environmental, and financial integrity issues.
• Private Sector: Establish robust internal controls and ethical standards to prevent financial mismanagement. Additionally, promote the adoption of international sustainability reporting, assurance, and ethics standards within local jurisdictions.

Examples include:

• Africa: The Development Bank of Southern Africa’s Climate Finance Facility (CFF) uses a blended finance approach to increase climate-related investments. It supports infrastructure projects that mitigate or adapt to climate change by filling market gaps and attracting private investment where traditional capital might be insufficient. It also encourages leveraging existing sustainability due diligence standards to promote integrity.
• Globally: The European Union’s Sustainable Finance Disclosure Regulation mandates financial market participants to disclose sustainability risks and impacts, and classify products based on standardised categories. This increases transparency and comparability in sustainability-labelled investments, enhances investor trust, and prompts market correction.

Greenwashing is the deceptive practice of misrepresenting sustainability-related information, practices, or features, particularly within the investment value chain. It’s a growing concern due to the rapid growth of sustainable bonds and the compressed timelines for achieving sustainability goals by 2030. Issuers might mislead investors about a product’s sustainability objectives, undermining trust and accountability. Mandatory global bond standards and robust sustainability disclosure, assurance, and ethics standards are needed to combat this.

Various international standard-setting bodies are crucial:

• International Ethics Standards Board for Accountants (IESBA) and International Auditing and Assurance Standards Board (IAASB): Establish global ethics, independence, auditing, and assurance standards.
• International Public Sector Accounting Standards Board (IPSASB): Develops public sector financial reporting and sustainability reporting standards for governments.
• International Accounting Standards Board (IASB) and International Sustainability Standards Board (ISSB): Develop financial reporting and sustainability-related financial disclosure standards.

These bodies collaborate to ensure consistency, comparability, and reliability of information, which is vital for investors and stakeholders. The ISSB’s IFRS S1 and S2 standards, endorsed by IOSCO, are becoming a global baseline for sustainability disclosures, aiming to reduce “cherry-picking” of voluntary standards. New robust assurance and ethics standards (ISSA 5000 and IESSA) will come into effect from December 2026 to ensure the integrity, quality, and effectiveness of sustainability reporting and assurance, applicable to both professional accountants and non-accountants.

The main challenge is that the comprehensive nature of these standards can appear unduly burdensome for emerging markets and Small, Medium, and Micro Enterprises (SMMEs) due to legal and data requirements, as well as capacity constraints. This can lead to non-compliance. To address this, governments should:

• Develop and implement incentives that promote ethical behaviour in organisations involved in public procurement for climate initiatives.
• Reward organisations that demonstrate a strong commitment to integrity, transparency, and compliance. Consistent reporting practices across public and private sectors will also reduce regulatory fragmentation and improve information quality.

Technology, particularly digital tools such as Artificial Intelligence (AI), blockchain, and e-governance platforms, can significantly enhance transparency, accountability, and oversight. They enable:

• Real-time tracking of public spending: Allowing for immediate visibility into financial flows.
• Automated compliance monitoring: Reducing manual effort and increasing efficiency in ensuring adherence to regulations.
• Detection of irregularities: AI can analyse large datasets to flag suspicious activities for further investigation.
• Enhanced trust and accountability: Blockchain, for example, can create an immutable record of financial transactions, making it harder to misappropriate funds. The B20 specifically recommends a climate finance transparency registry, potentially leveraging blockchain, to trace funds, identify gaps, combat mismanagement, and facilitate inclusive climate action. However, it’s crucial that these technologies are adopted within robust frameworks that prioritise transparency, explainability, fairness, and accountability to avoid amplifying existing biases or creating new vulnerabilities.