Are Biodiversity Disclosures Now Mandatory in ESG Reporting?

Are biodiversity disclosure requirements becoming mandatory in global ESG frameworks after 2023 regulations? Explore new reporting rules, real world examples, and what they mean for companies and investors.

Written by Warrence Oghenevwegba

Published on February 23, 2026, 8:54 P.M

Are biodiversity disclosure requirements becoming mandatory in global ESG reporting frameworks after the wave of regulations introduced in 2023? Investors, regulators, and sustainability professionals are increasingly asking whether biodiversity reporting is shifting from voluntary guidance to enforceable compliance. As environmental degradation accelerates and ecosystems face mounting pressure, the governance of nature related risks is moving into the center of corporate sustainability reporting. The critical question now is simple yet consequential: are companies truly required to disclose biodiversity impacts, or is the mandate still emerging?

What Are Biodiversity Disclosure Requirements in ESG Reporting?

Biodiversity disclosure requirements refer to rules or reporting standards that require companies to measure, manage, and publicly report how their operations affect ecosystems, species, and natural habitats. In practical terms, this includes information on land use change, deforestation, water extraction, pollution, habitat fragmentation, and supply chain impacts on nature.

Within Environmental, Social, and Governance frameworks, biodiversity reporting sits under the environmental pillar. Traditionally, ESG reporting emphasized climate risk, carbon emissions, and energy use. However, biodiversity loss has become a systemic risk with economic consequences, influencing food systems, water security, and supply chain resilience.

The environmental importance is not abstract. Biodiversity underpins ecosystem services such as pollination, soil fertility, carbon sequestration, and flood regulation. When species decline or habitats are degraded, businesses face operational disruption, regulatory exposure, and reputational risk. This is why biodiversity risk is increasingly discussed alongside climate risk in sustainability governance.

Have Biodiversity Disclosures Become Mandatory After 2023 Regulations?

The short answer is nuanced. In many jurisdictions, biodiversity disclosure is not universally mandatory in isolation. However, after 2023 regulatory developments, biodiversity considerations are increasingly embedded within broader sustainability reporting requirements.

A major turning point was the adoption of the Corporate Sustainability Reporting Directive by the European Union. The directive significantly expanded sustainability disclosure obligations for companies operating within or linked to EU markets. Under this framework, biodiversity and ecosystems are explicitly included in environmental reporting standards. Companies subject to the directive must assess material impacts, risks, and dependencies related to biodiversity.

In parallel, the International Sustainability Standards Board issued global sustainability disclosure standards focused initially on climate. While biodiversity is not yet a standalone mandatory global standard under ISSB, nature related risks are increasingly integrated into risk assessment expectations.

Meanwhile, the Taskforce on Nature-related Financial Disclosures released its final recommendations in 2023. TNFD is not a regulator, but its framework provides structured guidance for companies to disclose nature related dependencies, impacts, risks, and opportunities. Although voluntary at launch, several governments and financial institutions have signaled alignment or future integration into regulatory systems.

The pattern is clear. Biodiversity disclosure is transitioning from voluntary guidance to quasi mandatory expectation through incorporation into broader sustainability regulations.

Why 2023 Marked a Regulatory Inflection Point

Several developments converged around 2022 and 2023.

First, the adoption of the Kunming Montreal Global Biodiversity Framework at COP15 in 2022 established international targets to halt and reverse biodiversity loss by 2030. While not itself a corporate reporting law, it signaled political commitment and influenced national policies.

Second, the EU’s Corporate Sustainability Reporting Directive began phased implementation starting in 2024 for large companies, based on financial year 2023 reporting. This means biodiversity disclosures are now entering mandatory filings for thousands of firms.

Third, financial regulators increasingly recognize biodiversity loss as a systemic financial stability risk. Central banks and supervisory authorities have begun examining nature related exposures in banking and insurance sectors.

In effect, biodiversity moved from conservation discourse into financial governance architecture.

Who Is Most Affected by Mandatory Biodiversity Disclosure?

Large listed companies and multinational corporations operating in jurisdictions with mandatory sustainability reporting face the most immediate obligations.

However, supply chain effects are significant. Smaller suppliers, especially in agriculture, forestry, fisheries, and extractive industries, may be required to provide environmental data to larger corporate clients.

Investors are also affected. Asset managers increasingly integrate biodiversity risk into due diligence processes. Failure to assess ecosystem impacts may expose portfolios to stranded assets or regulatory penalties.

Ultimately, ecosystems themselves are the silent stakeholders. Improved disclosure can incentivize habitat protection, restoration projects, and reduced land degradation.

Challenges and Limitations in Biodiversity Reporting

Despite regulatory momentum, biodiversity disclosure faces substantial obstacles.

Data Complexity

Unlike carbon emissions, biodiversity is location specific and multidimensional. Measuring species richness, ecosystem health, or habitat fragmentation requires scientific expertise and often field level data.

Standardization Gaps

While climate reporting has relatively harmonized metrics such as greenhouse gas emissions, biodiversity lacks universally accepted indicators. This creates comparability challenges across industries and regions.

Risk of Greenwashing

Without strict enforcement, companies may provide qualitative descriptions without measurable targets. Regulatory oversight remains uneven globally.

Jurisdictional Differences

Mandatory biodiversity disclosure is stronger in the EU than in many other regions. In some countries, reporting remains largely voluntary. This fragmentation may create uneven compliance burdens.

A critical perspective is necessary. Regulation alone does not guarantee ecological recovery. Reporting is a transparency tool, not a conservation outcome in itself.

Are Biodiversity Disclosures Truly Mandatory Globally?

Globally mandatory biodiversity disclosure does not yet exist in a uniform sense. However, in jurisdictions such as the European Union, biodiversity reporting is effectively mandatory for companies under expanded sustainability reporting laws.

Elsewhere, biodiversity disclosure is transitioning from voluntary to expected best practice, particularly for firms exposed to global capital markets. Regulatory convergence is gradual but observable.

The broader insight is strategic. Biodiversity is no longer peripheral to ESG. It is becoming embedded within risk governance, compliance systems, and investor scrutiny.

Corporate sustainability is expanding beyond carbon. Nature related risk is entering boardrooms with legal weight.

As regulatory frameworks continue to evolve beyond 2023 reforms, the direction appears clear. Transparency around ecosystem impacts is strengthening. The remaining question is not whether biodiversity will be integrated into ESG reporting, but how rapidly jurisdictions outside early adopters will formalize the requirement.

If biodiversity underpins economic stability and ecosystem resilience, can global capital markets afford to treat its disclosure as optional for much longer?