The watchdog banned the ads
The advertising watchdog has banned them. On 8 September, the Advertising Standards Authority ruled against three British travel firms. Their ads are now gone. The ruling targeted some of the biggest names in the holiday market, including the resurrected online brand Thomas Cook. It also cited the package holiday giant loveholidays, as well as the long haul specialist DialAFlight. The decision was a sharp rebuke.
At the heart of the dispute were specific words. Regulators objected to vague but appealing phrases used to sell hotel stays to environmentally aware consumers, including terms like ‘Eco Resort’, ‘Eco Hotel’ and ‘eco-conscious resort’. The ASA found the descriptions could mislead potential customers. There was no substance. The companies had failed to provide any convincing evidence that the holidays they were selling offered a genuine, overall environmental benefit compared to a standard booking. Their claims were just marketing.
The ASA’s role is to ensure advertising is legal, decent, honest and truthful. Its rules are not optional. The UK Code of Non broadcast Advertising, which the firms broke, requires marketers to hold robust documentary proof for any objective claim they make before an advertisement is even published. A term as sweeping as ‘eco’ is considered an absolute claim about a product’s environmental impact, demanding a very high standard of proof that covers the entire service, not just a handful of isolated initiatives like fewer towel changes. The firms could not meet this standard. They fell far short.
This judgement is not a minor technicality over promotional wording. It strikes at the core of a lucrative marketing strategy used throughout the entire travel sector. The ASA did not accuse the companies of lying about a specific feature, like the existence of a hotel’s solar panels or its recycling policy. Instead, the watchdog concluded that they had used broad, undefined green terminology to create a misleadingly positive and wholly unsubstantiated impression of their products. It is this halo effect that the ruling seeks to dismantle. The message from the regulator is clear. Prove it, or remove it.
Green is a very profitable colour
This is about money. Travel companies are not suddenly developing a corporate conscience, they are chasing a specific and highly valuable group of customers who are increasingly willing to pay a premium for what they perceive as responsible travel. That perception is key. The sustainable tourism market is a commercial behemoth, with analysts valuing the global sector at more than £150 billion in recent years and forecasting it to expand at a compound annual rate of nearly 25 per cent for the rest of the decade. The sums are vast. This explains the corporate behaviour.
Recent industry surveys show a clear trend, with more than seventy per cent of global travellers stating they want to make more sustainable choices in the year ahead, a figure that has grown steadily since the pandemic. Many of these same travellers report a willingness to pay more, with some studies suggesting consumers will accept a price hike of up to ten per cent for an option they believe is genuinely better for the environment. This creates a simple calculation for corporate finance directors. It is far cheaper, and much faster, to simply adopt the label ‘eco’ than it is to undertake the deep, expensive and often disruptive operational changes required to actually earn it, from installing new waste management systems to sourcing local food and generating renewable power on site. The marketing is cheap. The engineering is not.
For a company like loveholidays or Thomas Cook, the commercial logic is therefore almost irresistible. It promises access to a fast growing and less price sensitive market segment for little more than the cost of a new advertising campaign. The return on investment for simply changing a few words in a brochure is immense compared to the capital expenditure required for a genuine green transition across a portfolio of hundreds of hotels. This is a battle for market share. An ‘eco’ label is a weapon in that battle, used to capture a demographic that is both wealthy and well intentioned. The ASA ruling suggests the weapon may be faulty.
No one agrees what 'eco' means
The root of the problem is simple. The word ‘eco’ has no legal definition. None at all. No government department defines it. No act of parliament controls its use on a website or in a brochure. This absence of a clear, enforceable standard creates a regulatory vacuum, a grey area that the entire travel industry has cheerfully occupied for decades. The Advertising Standards Authority can sanction a firm like Thomas Cook for a misleading advert. It cannot create a technical standard for the hotel industry. That is not its job. The word just sits there, a potent and profitable marketing tool precisely because it is so beautifully, dangerously, undefined.
Into this void a chaotic market has rushed. Hundreds of private certification schemes now exist, each offering to give a hotel a green stamp of approval. They are not the same. Some are serious. They employ auditors who conduct multi year inspections of a hotel’s operations, demanding vast spreadsheets of data on everything from water consumption and waste recycling to energy sources and the percentage of food sourced from local suppliers. These certifications are difficult to get. They are expensive to maintain. Others are little more than digital storefronts. They sell a logo for an annual fee, with verification processes that barely scratch the surface, often requiring nothing more than a manager ticking boxes on a web form. A hotel can buy its green credentials in an afternoon. The certificate arrives by email.
This patchwork of private marks creates deliberate confusion. It is almost designed for it. A customer planning a holiday might see a green leaf logo next to a hotel description. How are they supposed to know if that logo represents a serious audit from an established body like B Corp or Green Key, or if it is a worthless badge bought for £200 from a shell company registered in Panama? They cannot. They have no way to check. This ambiguity is what travel companies exploit. It allows a firm to shop for the quickest, cheapest and least demanding certification that still gives it the right to use the word 'eco'. This is not about saving the planet. It is regulatory arbitrage.
Terms like ‘Eco Resort’ or ‘eco-conscious hotel’ are therefore mostly meaningless. They are phantoms. They sound solid and reassuring but they have no substance without a common, legally recognised measure behind them. They are just words. They are words chosen not to reflect a verifiable standard of environmental performance but to attract a particular type of customer and to justify a higher price. The ASA’s decision to ban the adverts from loveholidays and DialAFlight is a direct result of this systemic failure. The watchdog is trimming the branches of a poisoned tree. The poison is in the roots. The problem is the definition itself. Or the lack of one.
The City is watching closely
This is now a City matter. What was once a public relations problem, a minor dispute over the wording of a brochure, has morphed into a direct financial risk for Britain’s largest travel companies. The stakes are very high. A vast and growing river of money, running into trillions of pounds, is now directed by investment managers who follow rules known as Environmental, Social, and Governance criteria. They call it ESG. The acronym is clumsy. The logic is not. These funds will only invest in corporations that meet specific, non negotiable standards on how they are run and how they affect the world.
A ruling from the Advertising Standards Authority is no longer a small irritation. It is a data point. For a fund manager in London or New York, the decision against Thomas Cook and loveholidays is hard evidence of poor governance and deceptive environmental reporting. Specialist ratings agencies exist purely to supply this kind of information to investors. They scrutinise corporate behaviour, then sell the analysis to the funds. These agencies feed regulatory rebukes directly into their models, which can trigger an immediate downgrade of a company’s ESG score. The score is everything. A bad score is toxic.
The consequences are automatic. They are brutal. An ESG fund whose own rules forbid it from holding companies with a rating below a certain level has no choice, its charter requires the manager to sell the shares. A single downgrade can trigger a wave of forced selling. Big institutions sell. They all sell at once. This cascade of sell orders puts immense pressure on a company’s share price, wiping millions, sometimes billions, off its stock market valuation. It hurts the company. It hurts its investors. A lower share price also makes it more expensive for the firm to borrow money or raise fresh capital for expansion.
Not all the companies sanctioned by the ASA are publicly traded. Loveholidays and DialAFlight are private firms. But the financial logic still holds. Thomas Cook’s parent company, Fosun Tourism Group, is listed on the Hong Kong Stock Exchange, and global investors will view a regulatory breach in a key market like the UK as a sign of weak oversight across the entire group. The stain spreads. For a private firm like loveholidays, the risk is to its exit price. Its owner, the private equity fund Livingbridge, bought the business to sell it on for a profit, and a damaged reputation for greenwashing makes it a far less attractive asset to a future buyer. It lowers the final price. This is not about saving the planet. It is about protecting the balance sheet.
Airlines are the next target
The attack on hotels is just the start. It is a skirmish. The real war is on aviation. The Advertising Standards Authority has established a clear principle with its rulings against Thomas Cook and loveholidays, that vague environmental claims without robust proof are misleading. Now the watchdog is turning its attention to a much bigger source of emissions. The airlines are next.
Their carbon footprint is enormous. It dwarfs that of the hotel sector. A single long haul flight can generate more carbon dioxide than the average person in dozens of countries produces in a year, a scale of impact that makes misleading advertising in this area particularly serious. The regulator’s logic is simple. It follows the pollution. For years, carriers have tried to soothe passenger guilt with comforting messages about green flying. Those messages are now being examined. They are being found wanting.
Airlines have relied on two main pillars for their environmental marketing. Carbon offsetting. Sustainable Aviation Fuel. Both are built on shaky ground. An offsetting scheme typically invites you to pay a few extra pounds to ‘offset’ your flight’s emissions, often by funding tree planting projects in another continent. The problem is proof. It is almost impossible for an airline to prove that the specific trees you funded were planted, that they will survive, or that they would not have been planted anyway. The chain of evidence is long and weak, which makes any absolute claim that your flight has been ‘neutralised’ a direct challenge to advertising rules.
Sustainable Aviation Fuel, or SAF, presents a different kind of problem. It is a real technology. It works. But it is exceptionally rare. SAF represents a tiny fraction of the fuel used by commercial airlines, often far less than one per cent of the total volume consumed. When an airline advertises a flight as being powered by SAF, it is talking about a blend containing a minuscule amount of the greener fuel mixed in with vast quantities of traditional kerosene. The overall environmental benefit of your specific journey is therefore negligible. The ASA’s code is clear. The claims must not mislead by exaggeration. This is a textbook exaggeration. The hotel rulings were the test case. The legal logic is now established. The campaign is escalating.
You cannot trust the brochure
The holiday brochure is not your friend. It is an instrument of sales. Its language is deliberately soft, designed to create a feeling, not to communicate a fact. Words like ‘green’, ‘responsible’ or ‘conscious’ have no legal definition in this context, making them functionally meaningless and a perfect vehicle for misleading you. They are marketing slogans. Not data. An ‘eco resort’ sounds wonderful, but the term often tells you more about the company’s target demographic than it does about its water recycling policy or energy consumption. The Advertising Standards Authority is catching up. Consumers must too.
The real information, if it exists, is almost always located elsewhere. It is found in the dry, detailed corporate sustainability reports that companies publish for investors, not for holidaymakers. This is where you must look. A truly sustainable hotel or travel company will be measuring everything, from its energy use per guest and its water consumption per room, to its recycling rates and the percentage of food sourced from local suppliers. It will not hide these numbers. It will present them clearly. If you cannot find hard figures for waste reduction or CO2 emissions per passenger, the beautiful claims printed on glossy paper are probably fiction.
Data alone is not enough. You must ask who is verifying it. A company can publish any numbers it wants. The critical test is whether an independent, credible organisation has checked them. Has the hotel’s energy audit been performed by a certified local body or just the hotel manager? Does the company’s overarching environmental report include an assurance statement from an accounting firm like PwC or KPMG, the same kind of firms that audit financial results? This is the difference between a marketing exercise and genuine corporate governance. Self certification is easy. It is often worthless. Look for external proof.
Finally, look for commitments. A company serious about its environmental impact will have clear, measurable and time bound targets. A vague promise to ‘reduce emissions’ is not a strategy. A public commitment to ‘cut food waste by 50 per cent by 2030 against a 2022 baseline’ is a concrete performance indicator against which the board and investors can be judged. This is not about turning every holiday planner into a forensic accountant. The opposite is true. The work has been done for you by the company's silence. If a travel firm makes it difficult to find this data, if the numbers are not there, and if the targets are fuzzy, you have your answer. The ‘eco’ claim is just a word.
Sources. Independent Business: Travel firm ads banned over misleading ‘eco’ hotel claims. Evening Standard: Travel firm ads banned over misleading ‘eco’ hotel claims.
Analysis. Drafted with AI assistance from the sources listed above and reviewed by an editor before publication. Jnews links to the organisations it writes about.

