Greenwashing is no longer just a reputational risk. It is becoming a legal one. As regulators across Europe tighten the rules around environmental claims, businesses that make misleading sustainability statements face fines, litigation, and lasting damage to consumer trust. Here are five of the most common greenwashing mistakes and how to avoid them.

The Regulatory Landscape Is Shifting

The EU Green Claims Directive, proposed in 2023 and progressing through legislative channels, will require companies to substantiate any environmental claim made to consumers with robust, independently verified evidence. Combined with the existing Unfair Commercial Practices Directive and the Empowering Consumers Directive, which explicitly targets vague environmental claims, the days of making unsubstantiated green claims in Europe are numbered.

National regulators are already taking action. The UK's Competition and Markets Authority (CMA) has published the Green Claims Code and has investigated companies across sectors for misleading environmental marketing. In the Netherlands, the Authority for Consumers and Markets has fined companies for unsubstantiated "carbon neutral" claims. This is a global trend, and it is accelerating.

The cost of getting caught greenwashing is no longer just a PR crisis. It is regulatory enforcement, financial penalties, and class-action litigation.

Mistake 1: Vague and Unquantified Claims

Phrases like "eco-friendly," "green," "sustainable," or "better for the planet" are the most common form of greenwashing. They sound positive but communicate nothing specific. Under the Green Claims Directive, every environmental claim must be substantiated with specific, measurable evidence.

The fix: Replace vague language with specific, quantified claims. Instead of "Our packaging is sustainable," say "Our packaging contains 80% post-consumer recycled content, reducing its carbon footprint by 35% compared to virgin materials." Back every number with data, methodology, and third-party verification where possible.

Mistake 2: Cherry-Picking Positive Data

Highlighting a single positive environmental metric while ignoring the broader picture is a subtle but pervasive form of greenwashing. For example, a company might promote its renewable energy procurement while omitting that Scope 3 emissions from its supply chain have increased by 40%.

The fix: Present environmental performance in context. If you are highlighting progress in one area, acknowledge challenges in others. Credible sustainability communication tells the full story, including the parts that are not yet where you want them to be. Stakeholders respect honesty more than perfection.

Mistake 3: Misleading Carbon Neutral Claims

Claims of "carbon neutrality" have come under intense scrutiny. Many rely heavily on carbon offsets of questionable quality while actual emissions remain unchanged or even increase. Regulators and standards bodies are increasingly sceptical of claims that equate purchasing offsets with genuinely eliminating emissions.

The fix: If you claim carbon neutrality, be transparent about how it is achieved. Clearly separate actual emissions reductions from offset purchases. Disclose the type and quality of offsets used. Better yet, focus your messaging on measurable reductions in actual emissions rather than offset-based neutrality claims. The SBTi's Corporate Net-Zero Standard provides a credible framework: reduce emissions by 90% or more, then use high-quality carbon removal for the residual fraction.

Mistake 4: Ignoring the Full Value Chain

Many companies focus their environmental claims on their direct operations (Scope 1 and 2) while ignoring supply chain emissions (Scope 3), which often represent the vast majority of their footprint. Claiming to be "low carbon" while overlooking 80% of your emissions is misleading even if unintentional.

The fix: Be clear about the boundaries of your claims. If your carbon reduction figures only cover Scope 1 and 2, say so explicitly. Better still, work towards comprehensive Scope 3 measurement and include the full picture in your environmental communications. The Green Claims Directive is expected to require that claims do not hide significant environmental impacts elsewhere in the value chain.

Mistake 5: Using Outdated or Unverified Data

Environmental claims based on data that is several years old, uses superseded emission factors, or has never been independently reviewed are inherently unreliable. As assurance requirements expand under CSRD and the Green Claims Directive, unverified data will not survive regulatory scrutiny.

The fix: Ensure your emissions data is current, uses up-to-date emission factors, and is subject to regular review or assurance. Implement systems that maintain a clear audit trail from raw data through to published figures. If you make a public environmental claim, be prepared to show the evidence behind it.

Building Credible Sustainability Messaging

Avoiding greenwashing is not about saying less. It is about saying things that are true, specific, and substantiated. Here are the principles that underpin credible environmental communication:

The most powerful environmental claim is one that is boring in its precision: specific, quantified, independently verified, and contextually honest.

Noissime's Green Claims Validator analyses your environmental statements against regulatory standards and best practices, identifying vague language, unsupported assertions, and claims that may not withstand regulatory scrutiny. Combined with our comprehensive emissions tracking and audit-ready reporting, it helps you communicate your sustainability performance with confidence and credibility.