Mitigating greenwashing risks and building trust

Written by: Cameron Wilson, Solutions Manager Reporting| Last updated: 16.07.2026

As expectations around environmental claims continue to rise, organisations face increasing scrutiny from regulators, investors, customers and employees. Stakeholders no longer expect ambitious sustainability commitments alone; they expect every public claim to be supported by credible evidence, clear governance and transparent reporting.

Against this backdrop, greenwashing has evolved from a reputational concern into a significant business risk. What was once considered a communications issue is now firmly a governance, compliance and trust issue.

The challenge is that greenwashing is not always the result of deliberate attempts to mislead stakeholders. More often, it occurs when sustainability communications move ahead of the evidence available to support them. Disconnected teams, inconsistent data or broad environmental claims can all expose organisations to regulatory scrutiny, reputational damage and declining stakeholder confidence, even where organisations are making genuine sustainability progress.

In the UK, regulators have strengthened expectations around environmental claims through initiatives such as the Competition and Markets Authority’s (CMA) Green Claims Code(1) and the Financial Conduct Authority’s (FCA) anti-greenwashing rule. Across Europe, legislation including the Ecodesign for Sustainable Products Regulation (ESPR) is raising expectations around product transparency and environmental information, while broader sustainability reporting requirements continue to reinforce the need for robust, substantiated disclosures.(2) As regulatory expectations continue to evolve, organisations must ensure that their external communications accurately reflect their actual performance.

The compliance reality: What are the commercial and ethical risks of greenwashing?

Greenwashing is often associated with deliberate attempts to mislead stakeholders. In reality, many cases arise from poor internal coordination, inconsistent data or overly ambitious messaging that outpaces actual performance. A marketing team may describe a product as “sustainable” without understanding the underlying evidence. A sales team may oversimplify a climate commitment to strengthen a proposal. A report writer may use broad language that cannot be fully substantiated. While these situations may not be intentional, they can still create significant commercial, regulatory and reputational exposure.

The commercial consequences are becoming increasingly severe. Regulators across Europe and the UK are actively scrutinising environmental claims and taking enforcement action where organisations cannot provide sufficient evidence. Several well-known brands have faced investigations, advertising bans or legal challenges because environmental claims were considered unclear, exaggerated or insufficiently substantiated.(3) These cases demonstrate that organisations do not need to make outright false statements to face scrutiny. Often, the issue is a lack of context, transparency or supporting evidence.

The financial implications can also be significant. Investors increasingly assess the credibility of sustainability commitments alongside governance and risk management when evaluating long-term business resilience.(4) Organisations that cannot demonstrate robust governance and reliable sustainability data may face greater investor scepticism, reputational damage and reduced stakeholder confidence.

There are also important ethical considerations. Misleading claims can influence purchasing decisions, distort competition and undermine trust in sustainability more broadly. At a time when organisations are expected to play a meaningful role in addressing environmental and social challenges, credibility has become a critical business asset. Greenwashing does not only damage individual organisations; it weakens confidence in genuine sustainability progress across entire markets.

Proactive governance: How can greenwashing be prevented?

Preventing greenwashing requires far more than careful marketing. Every sustainability claim is ultimately a governance decision. It demands strong governance, reliable data and effective collaboration across the organisation.

Build cross-functional governance

The most effective organisations treat sustainability communications as a cross-functional responsibility rather than the sole responsibility of a communications team. Sustainability specialists, legal teams, communications professionals and senior leadership should work together to review and approve external claims. This governance model helps ensure messaging accurately reflects organisational performance, aligns with regulatory expectations and remains consistent across every communication channel.(5)

Evidence every claim

The second step is ensuring that every claim can be substantiated. Organisations should be able to trace sustainability statements back to robust evidence, whether that relates to carbon emissions, product impacts, renewable energy procurement or supply chain performance. If a claim cannot be supported by reliable, traceable data, it should not be published.

Communicate with precision

Broad statements such as “environmentally friendly” or “green” are increasingly viewed with scepticism because they are difficult to define and verify. More credible communications focus on measurable outcomes, clearly defined methodologies and transparent explanations of progress. Communicating what has been achieved, how it has been measured and where limitations remain provides stakeholders with far greater confidence than broad sustainability claims.

Build internal understanding

Internal communication also plays a critical role. Employees are often the first people to discuss sustainability commitments with customers, suppliers and investors. Without a clear understanding of the organisation’s sustainability strategy and supporting evidence, there is a greater risk of accidental overclaiming. Training and awareness programmes help ensure sustainability messages remain accurate, proportionate and consistent across all stakeholder interactions.

Ultimately, organisations that successfully avoid greenwashing are those that embed governance into the entire communication process, ensuring technical ESG performance and external messaging remain closely aligned.

Strategic alignment: How can organisations build trust through transparent sustainability communications?

Preventing individual misleading claims is only part of the solution. Stopping greenwashing requires organisations to move beyond treating sustainability communications as a marketing exercise and instead embed transparency into how sustainability is governed, measured and communicated.

Adopt an evidence-first mindset

This begins with a cultural shift. Instead of asking, “Can we make this claim?”, organisations should ask, “Can we prove this claim?” Sustainability should not be viewed as a series of headline claims designed to enhance reputation. Instead, it should be treated as an ongoing business transformation supported by clear governance, robust data and transparent reporting. Communications should reflect that journey rather than attempting to present a perfect picture.

Be transparent about progress

Stakeholders increasingly value honesty over perfection. Organisations that openly discuss both achievements and challenges often build greater credibility than those that communicate only success stories. Acknowledging missed targets, explaining methodologies and being transparent about data limitations demonstrates maturity and reinforces trust.

Embed governance for the long term

Long-term governance is equally important. Strong organisations establish clear processes that connect sustainability strategy, data collection, legal review and communications. This reduces the risk of disconnected teams making inconsistent claims while creating a stronger foundation for future sustainability reporting and evolving regulatory requirements.

Strengthen credibility through independent assurance

Independent verification can further strengthen confidence. Seeking external assurance over sustainability data and key environmental claims provides additional credibility and helps organisations communicate with greater confidence. As sustainability reporting becomes increasingly integrated into corporate governance, applying the same discipline to environmental claims as other business disclosures helps reduce risk while strengthening stakeholder trust.6

Ultimately, preventing greenwashing is not about saying less. It is about ensuring sustainability claims are a genuine reflection of business performance, supported by evidence, governance and transparency.

Get started

As regulatory expectations continue to evolve and stakeholder scrutiny increases, preventing greenwashing is no longer simply about avoiding misleading claims. It requires organisations to build the governance, data and internal alignment needed to ensure sustainability communications accurately reflect business performance.

The organisations that build lasting trust are those that treat sustainability communications as an extension of robust governance rather than a marketing exercise. By embedding evidence-based decision-making, cross-functional collaboration and transparent reporting, businesses can reduce risk, strengthen credibility and communicate their sustainability journey with confidence.

Simply Sustainable helps organisations bridge the gap between technical ESG performance and corporate narrative. We work with businesses to align sustainability strategy, governance, data and communications, enabling them to build trust, meet evolving regulatory expectations and communicate progress with confidence.

Explore our Communications solutions to discover how we can help you build a credible, compliant and evidence-based sustainability narrative.

Strategic alignment: How can organisations build trust through transparent sustainability communications?

Preventing individual misleading claims is only part of the solution. Stopping greenwashing requires organisations to move beyond treating sustainability communications as a marketing exercise and instead embed transparency into how sustainability is governed, measured and communicated.

Adopt an evidence-first mindset

This begins with a cultural shift. Instead of asking, “Can we make this claim?”, organisations should ask, “Can we prove this claim?” Sustainability should not be viewed as a series of headline claims designed to enhance reputation. Instead, it should be treated as an ongoing business transformation supported by clear governance, robust data and transparent reporting. Communications should reflect that journey rather than attempting to present a perfect picture.

Be transparent about progress

Stakeholders increasingly value honesty over perfection. Organisations that openly discuss both achievements and challenges often build greater credibility than those that communicate only success stories. Acknowledging missed targets, explaining methodologies and being transparent about data limitations demonstrates maturity and reinforces trust.

Embed governance for the long term

Long-term governance is equally important. Strong organisations establish clear processes that connect sustainability strategy, data collection, legal review and communications. This reduces the risk of disconnected teams making inconsistent claims while creating a stronger foundation for future sustainability reporting and evolving regulatory requirements.

Strengthen credibility through independent assurance

Independent verification can further strengthen confidence. Seeking external assurance over sustainability data and key environmental claims provides additional credibility and helps organisations communicate with greater confidence. As sustainability reporting becomes increasingly integrated into corporate governance, applying the same discipline to environmental claims as other business disclosures helps reduce risk while strengthening stakeholder trust.(6)

Ultimately, preventing greenwashing is not about saying less. It is about ensuring sustainability claims are a genuine reflection of business performance, supported by evidence, governance and transparency.

Get started

As regulatory expectations continue to evolve and stakeholder scrutiny increases, preventing greenwashing is no longer simply about avoiding misleading claims. It requires organisations to build the governance, data and internal alignment needed to ensure sustainability communications accurately reflect business performance.

The organisations that build lasting trust are those that treat sustainability communications as an extension of robust governance rather than a marketing exercise. By embedding evidence-based decision-making, cross-functional collaboration and transparent reporting, businesses can reduce risk, strengthen credibility and communicate their sustainability journey with confidence.

Simply Sustainable helps organisations bridge the gap between technical ESG performance and corporate narrative. We work with businesses to align sustainability strategy, governance, data and communications, enabling them to build trust, meet evolving regulatory expectations and communicate progress with confidence.

Explore our Communications solutions to discover how we can help you build a credible, compliant and evidence-based sustainability narrative.

1 CMA. Green Claims Code: Making Environmental Claims (2021).

2 ESPR Regulation (EU) 2024/1781 (Official Journal of the EU).

3 ASA rulings on Adidas, Calvin Klein and Uniqlo (or HSBC/Lloyds if you prefer finance examples).

4 CMA Green Claims guidance and supply chain guidance.

5 CMA Green Claims Code + FCA Anti Greenwashing Guidance.

6 CSRD / ESRS assurance requirements or ISSA 5000 (IAASB) depending on the audience.