EU cracks down on airlines' misleading green claims with major enforcement action

On November 5, 2025, the European Commission announced a significant coordinated enforcement action involving 21 major airlines, including prominent carriers like Air France, KLM, and Ryanair, targeting misleading environmental marketing claims. This follows a broader investigation by EU consumer protection authorities that scrutinised common industry practices around environmental claims related to flight emissions and sustainability efforts. The airlines have committed to substantial reforms in their marketing practices to ensure accuracy, transparency, and substantiation regarding environmental claims, particularly those related to carbon emissions and the use of sustainable aviation fuels (SAF).

The action emerged from a coordinated review by the Consumer Protection Cooperation (CPC) Network, which operates under the framework of the EU Consumer Protection Regulation to enforce consumer rights across borders. The process was catalysed by a formal complaint filed in June 2023 by the European Consumer Organisation (BEUC), backed by 23 consumer groups across 19 countries. BEUC’s complaint highlighted that 17 European airlines were implying that optional passenger payments for “green fees,” climate protection projects, or alternative fuels could directly neutralise or offset carbon emissions on individual flights, a claim deemed misleading under EU law, specifically the Unfair Commercial Practices Directive (UCPD).

The UCPD harmonises national laws to prevent unfair commercial practices in the internal market, prohibiting misleading actions by businesses. It is supported by the European Commission’s Guidance Notice, which although not legally binding, provides clarity on the application of the directive, with specific recommendations regarding environmental claims and their potential to mislead consumers.

As part of their commitment, the 21 airlines agreed to:

• Cease implying that passenger payments for climate projects or alternative fuels can directly neutralise or reduce CO₂ emissions on specific flights.
• Use the term “sustainable aviation fuel” only with proper scientific substantiation and clear clarifications.
• Avoid vague “green” marketing language that could mislead consumers about the environmental impact of their flights.
• Provide detailed disclosures when making forward-looking climate goals, such as net-zero targets, including timelines, specific mitigation steps, and the scope of emissions covered.
• Enhance the transparency and clarity of their CO₂ emissions calculators, ensuring assumptions and data sources are comprehensible and scientifically sound.
• Support all environmental marketing claims with robust scientific evidence.

National consumer authorities are tasked with monitoring the airlines’ implementation of these commitments, with enforcement actions planned against any operators failing to meet the agreed standards. The coordinated approach ensures a level playing field within the aviation market and signals that other carriers operating within the EU Single Market can expect similar scrutiny and demands for compliance.

While this enforcement action is focused on the aviation sector, it carries broader implications for environmental marketing across industries. Regulators have underscored that claims suggesting consumer payments can deliver immediate carbon neutrality or sustainability benefits, such as through offset schemes or transition fuels like SAF, require rigorous qualification and scientific validation. Aspirational claims about achieving net-zero emissions must be transparently communicated with clear milestones, methodologies, and limitations.

For companies marketing to EU consumers, particularly those offering add-on sustainability fees or offsets, this development necessitates a thorough review of environmental claims in their marketing. The Commission’s action exemplifies an evolving regulatory landscape influenced by broader initiatives like the forthcoming Green Claims Directive and the EU Empowering Consumers Directive, designed to clamp down on greenwashing.

Experts recommend businesses take practical steps including inventorying their existing green claims, ensuring they are backed by credible evidence aligned with international standards, avoiding vague terms like “eco-friendly” without precise definitions, and training marketing, sustainability, and legal teams to pre-clear environmental messaging. Monitoring ongoing regulatory developments not only in the EU but in other jurisdictions such as Canada, which recently issued guidelines on greenwashing, is also advised.

This initiative follows earlier probes by the European Commission and national authorities begun in 2024, when investigations first targeted about 20 airlines for potentially misleading claims related to flight emissions offsetting. The investigations demanded scientific substantiation from airlines, reflecting growing scrutiny of “sustainable flight” marketing messages. The latest commitments mark a pivotal moment in EU regulatory efforts to foster more transparent, truthful environmental communication in the aviation sector, setting a precedent likely to influence other industries grappling with sustainable branding and consumer trust.

For industrial decarbonisation professionals, this action underscores the increasing regulatory emphasis on credible, transparent environmental claims as central to consumer protection and market fairness. It signals that sustainability initiatives must be not only scientifically sound but also clearly communicated, avoiding overstated or ambiguous claims that could mislead stakeholders or consumers. Such developments reinforce the need for robust governance frameworks around environmental marketing, particularly as industries seek to transition to lower-carbon operations while engaging end users in sustainability objectives.