The Hidden Environmental Cost of How We Travel (And What Actually Helps)

There is something about travel that changes you. Standing at the edge of a glacier, watching the sun set over a city you've never been to before, finding yourself completely lost in a forest with no signal and no plan — these moments stay with you. They shape the way you see the world and, often, the way you want to protect it.

At Trouvaille, travel is in our DNA. It's the reason our business exists. But it's also given us a front-row seat to something harder to ignore: the real environmental cost of how we get from A to B. We've walked on glaciers that are visibly smaller than they were a few decades ago. We've watched coral bleach in reefs that were once extraordinary. We've seen a beach that was once unspoiled filled with plastic waste,

So this isn't a post designed to make you feel guilty about loving to travel. It's an invitation to do it better, more intentionally, more sustainably, and in a way that leaves the places you love better than you found them.

The real environmental cost of travel

Let's start with an honest look at the numbers, because understanding the problem is the first step to navigating it well.

Flying

Aviation is the most carbon-intensive way to travel. A single long-haul return flight — say, London to New York — can produce roughly one tonne of CO2 per passenger. To put that in perspective, that's comparable to several months' worth of driving for the average person. And when you factor in the additional warming effects of contrails and high-altitude emissions, the true climate impact of flying is estimated to be two to four times greater than the CO2 figure alone suggests.

This doesn't mean never fly. It means fly with intention. Fewer trips, longer stays, direct routes where possible — these choices make a genuine difference.

Our choice to go on a round-the-world trip was in part motivated by this. We knew we wanted to travel to so many places, and we knew the best and most life-changing way to do it was to combine all our dream trips in one. Instead of flying hundreds of times during a lifetime, we bought 16 long-haul flights and travelled for almost 2 years (after saving for a few years too and working remotely along the way). Staying longer in places. Using local public transport within each country. Going beyond the obvious. Giving ourselves the space to really experience each place. Needless to say, this completely changed the way we travel.

Accommodation and tourism infrastructure

Hotels, resorts, and tourist infrastructure all carry environmental costs — energy consumption, water use, waste generation, and the land they occupy. Mass tourism can also place enormous pressure on fragile ecosystems and local communities, driving up prices, displacing residents, and degrading the very landscapes people come to see.

What we buy and how we pack

Single-use plastics, fast fashion bought for a trip and discarded, miniature plastic toiletries, disposable bags... The small things add up quickly, especially when multiplied across millions of travellers. The way we pack and shop on the road has a measurable impact that's easy to overlook but just as easy to address.

What actually helps — the honest version

There's a lot of noise around sustainable travel: carbon offset schemes, eco-labels, greenwashing from airlines and hotel chains. Here's what the evidence actually suggests makes a meaningful difference.

Fly less, stay longer

This is the single most impactful change a traveller can make. Instead of three short city breaks by plane, take one longer trip by train. Instead of a week, spend a month. You'll see more, spend less time in transit, produce significantly fewer emissions, and almost certainly have a richer experience. Slow travel isn't a compromise — it's genuinely better travel.

Choose train over plane where you can

A train journey between London and Paris produces around 90% fewer emissions than the equivalent flight. Across Europe, an extraordinary rail network makes it possible to reach almost anywhere overland — and to do so comfortably, scenically, and with far less of the stress that modern airports involve. It's one of those rare cases where the sustainable choice is also the more enjoyable one.

Support local, always

Where your money goes matters. Choosing locally owned accommodation, eating at family-run restaurants, hiring local guides, and buying from independent artisans rather than global chains keeps tourism income within the communities that need it and reduces the homogenisation of travel that strip-mines culture and character from the places we love. It also tends to produce more authentic, memorable experiences.

Travel with less and reuse what you bring

The most sustainable item is the one you already own. Bringing a reusable water bottle, a tote bag, a set of solid toiletries, and your own coffee cup eliminates an enormous amount of single-use waste over the course of a trip. It also lightens your bag, which is never a bad thing.

This is exactly why we designed our colour-in travel totes: to avoid supermarket plastic bags as we travelled around the world and, yes, did our grocery shopping! We've taken ours on sightseeing days and to the beach, and we keep colouring in new countries as we explore. The best thing is they are lightweight and easy to pop into the washing machine for a fresh look.

Seek out places that give back

The deeper shift: from tourist to traveller

Travel better, with the right companions

Final thoughts