The UK’s advertising watchdog, the Advertising Standards Authority (ASA), has issued a formal ban against three major travel companies—Thomas Cook, loveholidays, and DialAFlight—following an investigation into their marketing practices. The regulator determined that these firms used environmental descriptors such as 'Eco Resort,' 'Eco Hotel,' and 'eco-conscious resort' without providing the necessary evidence to back up these claims.

The ASA’s ruling centers on the concern that such terminology misleads consumers who are increasingly looking to make environmentally responsible travel choices. By using these labels without clear, verifiable data regarding the hotels' actual environmental impact, the regulator argued that the companies were engaging in 'greenwashing.'

While the companies involved have been ordered to remove the offending advertisements and ensure future marketing materials are substantiated with clear evidence, the ruling highlights a broader regulatory push to standardize how environmental claims are presented in the travel industry. The companies have not yet publicly detailed their specific plans for updating their marketing compliance protocols, but they are now under increased pressure to ensure that any future 'eco' claims are backed by rigorous, transparent environmental audits.