What separates a real green hotel from a marketing one

The bamboo card on the bathroom counter asks you to reuse your towel "to save the planet." Same hotel, meanwhile, has the corridor lights blasting twenty-four hours a day, single-use plastic minis lined up like soldiers in the bar, and a breakfast buffet that bins half its tray of scrambled eggs at 10:31am sharp. Most of us have stayed in this hotel. It's the default hotel. And the wedge between what it claims and what it actually does is exactly where greenwashing lives — somewhere between a laminated card and a laundry savings spreadsheet.

Telling a real green hotel from a marketing one isn't mystical. It comes down to a handful of questions you can ask before you book and a few things you can clock in the first ten minutes after check-in. Here's a working guide.

The towel card test (and why it's not enough)

Reusing towels and sheets is a good thing. It saves water, energy and detergent. But somewhere around the early 2000s, the hospitality industry collectively realised that asking guests to skip a wash was both genuinely useful and a brilliant cost-saver — and the towel card became the universal symbol of "we care."

The problem is that towel reuse is the floor, not the ceiling. A hotel that stops there is essentially asking you to do the sustainability work while it carries on heating empty rooms, replacing perfectly good furniture every refurb cycle, and serving food flown in from three continents. If the towel card is the only visible green thing in the building, treat it as a yellow flag, not a gold star.

Look for a third-party certification, not a logo the hotel made itself

The cleanest signal of a serious sustainable hotel is a credible, independent certification. The key word is independent. A "Green Leaf" or "Eco-Stay" badge designed by the hotel's own marketing team means roughly nothing.

The labels that have actual auditing behind them tend to come from a small set of recognised schemes. Look for things like:

Green Key — used widely across Europe and beyond, with site inspections.
EarthCheck — strong on data, asks hotels to measure and report energy, water and waste.
LEED or BREEAM — building-level certifications, more about the bricks than the operations, but a useful indicator.
EU Ecolabel — covers tourist accommodation across the EU with public criteria.
Biosphere certification, used in a number of destinations that take this seriously.

The Global Sustainable Tourism Council (GSTC) maintains criteria that the better schemes align with — if a hotel mentions GSTC alignment, it's a good sign someone in the building has actually read the framework rather than printed a leaf onto their key card.

Ask: what do they measure?

You can tell a lot about a hotel's sustainability seriousness by whether it can answer one question: what did your energy and water use per guest-night look like last year compared to the year before?

A hotel doing the work will have a number, or at least a direction of travel. A hotel doing the marketing will have an adjective — "we are committed to reducing" — and not much else. You don't have to be aggressive about this; many properties publish a sustainability report on their website. If the report has charts, targets, and a bad year they admit to, that's a real document. If it's three stock photos of leaves and the word "passion," it isn't.

Energy: the boring stuff that actually matters

The biggest carbon footprint of a hotel stay is almost always energy — heating, cooling, hot water, lighting, kitchens. Towels and straws are downstream. So the questions that move the needle are the boring infrastructure ones:

Where does the electricity come from? On-site solar, a renewable tariff, a power purchase agreement?
How is the building heated and cooled? Heat pumps and district heating beat gas boilers. Modern HVAC with key-card cut-offs beats blast-it-all-day systems.
Is hot water solar-assisted in sunnier climates?
LEDs throughout? Motion sensors in corridors and back-of-house?
Smart building management — i.e. does the empty conference room actually stop being air-conditioned when nobody's in it?

You won't get to inspect the boiler room. But hotels that have invested here will tell you, often in detail, because the investment is significant and they want credit. Silence on energy in their sustainability page, paired with loud talk about bamboo straws, is telling.

Water, in places where water matters

In a rainy northern European city, water use is a smaller piece of the puzzle. In coastal Spain in August, in the Mediterranean islands, in the American Southwest, in much of Asia — it's central. A genuinely green hotel in a water-stressed destination will have:

Low-flow taps, showers and dual-flush loos as a baseline.
Greywater recycling for irrigation, or at least drought-tolerant landscaping rather than emerald lawns in the desert.
Pool covers (yes, really — they cut evaporation enormously).
A laundry programme that actually loads the machines properly.

If you're staying somewhere arid and the property is essentially behaving like it's in Bavaria — sprinklers all afternoon, fountains everywhere, ornamental waterfalls in reception — the green credentials are decorative.

Food: the tell that's hardest to fake

Food and beverage is where greenwashing struggles to hide. You can put recyclable signs on bins; you can't fake what's on the breakfast buffet. Things to notice:

Local and seasonal sourcing. The menu in October shouldn't read identically to the menu in April. If the kitchen lists suppliers — by name, by region — that's a good sign.
Plant-forward options that are actually appealing. Not "we have a sad pasta," but proper vegetarian and vegan dishes given equal billing. Animal agriculture is a serious chunk of food's carbon footprint, and a kitchen that takes this seriously shows it on the menu.
Buffet portion control or à la carte breakfast. The all-you-can-touch-but-mostly-bin buffet is one of hospitality's quiet climate disasters. Hotels working on food waste are increasingly moving to smaller, refreshed-often buffets or cooked-to-order.
Where does the leftover food go? Composting, donation partnerships with local food charities, anaerobic digestion — these are signs of actual systems.

Plastic: useful, but watch the sleight of hand

Replacing single-use bottles in bathrooms with refillable dispensers is genuinely good, and in many places it's becoming standard or legally required. Skipping plastic stirrers and straws is fine. But "we removed plastic" can be a misleading headline if the replacement is single-use paper or compostables flown in from elsewhere, or if the hotel still ships in everything from bottled water to individually wrapped biscuits at the turndown.

Real progress on plastic looks like: bulk dispensers, refill stations for guests, glass carafes in rooms, suppliers who deliver in returnable crates, and a clear policy on the back-of-house items guests never see. Marketing progress on plastic looks like a press release about straws.

The community question

Sustainability isn't only environmental. A hotel that imports its entire workforce on short-term contracts, pays poorly, and channels every euro of its supply chain back to international conglomerates is doing damage even if its solar panels gleam. Look for:

Local hiring and visible career progression — not just guest-facing roles.
Local suppliers across F&B, amenities, and even art on the walls.
Engagement with the surrounding place: nature reserves, cultural sites, community projects, the actual neighbourhood.
Honest communication. A hotel that publishes what it's still working on is almost always more trustworthy than one that claims to have arrived.

Carbon offsetting: the fine print

A lot of hotels now claim "carbon-neutral stays." This can mean anything from "we measured our footprint, cut what we could, and bought verified credits for the rest" to "we paid a small annual fee to a website and got a certificate." The questions to ask:

Have you measured your emissions, and is that calculation public or third-party verified?
What have you reduced before offsetting? (Offsets should be the last mile, not the whole strategy.)
What standard are the credits — Verra, Gold Standard, registries with proper monitoring?
Are the projects credible — and recent — rather than vintage credits from a forest somewhere with a complicated history?

Offsetting done well is part of a serious climate plan. Offsetting done lazily is the carbon equivalent of the towel card.

Your ten-minute check-in audit

You don't need to interrogate the manager. In the first few minutes of a stay, you can clock:

Are the corridor and lobby lights tuned to the time of day, or just blasting?
Bathroom: dispensers or minis? Dual-flush? Low-flow shower head?
Room: key-card energy cut-off? Thermostat you can actually control?
In-room info: is there a sustainability page, and does it say anything specific?
Breakfast: local names on the menu? A real plant-based section?

None of these are dealbreakers on their own. Together they paint a picture, and after a few stays you'll start trusting the picture more than the marketing.

Booking with the homework already done

The honest truth is that doing this research yourself for every trip is exhausting. It's the reason greenwashing works — most travellers don't have the time. Booking through IMPT means a tonne of CO₂ is offset on-chain for every stay, paid from our commission rather than tacked onto your bill, so the climate maths starts in a better place no matter which property you pick. Pair that with the questions above, the IMPT Card for the rest of your trip spend, and the shop for offsets and partner brands when you're back home, and you've got a way of travelling that looks past the laminated card on the counter — and at the building behind it.