From Volume to Value: Why Sustainable Tourism Is Now a Business Imperative

Photo by Hugh Whyte from Unsplash

Tourism has never been bigger, or more contested. In 2024, travel and tourism contributed around US$10.9 trillion to the global economy, close to 10% of global GDP, and supported roughly 357 million jobs, about one in ten worldwide. It is, by any measure, one of the planet's great economic engines. And yet, in those same years, residents from Barcelona to Venice took to the streets against the very industry that sustains their cities. Understanding that paradox is, I believe, the central task of every serious tourism professional today.

The cost behind the growth

The friction is not irrational. Tourism's global carbon footprint is estimated at roughly 8% of greenhouse-gas emissions (Lenzen et al., Nature Climate Change, 2018), and more recent research places it near 9% by 2019 growing more than twice as fast as the wider economy. Add housing pressure from short-term rentals, congestion at fragile heritage sites, and seasonal strain on water and waste systems, and the picture becomes clear: unmanaged growth quietly erodes the natural, cultural and social capital that made a destination attractive in the first place.

A definition worth remembering

UN Tourism defines sustainable tourism as tourism that takes full account of its current and future economic, social and environmental impacts, balancing the needs of visitors, the industry, the environment and host communities. That balance the three pillars of economic, social and environmental value is not an ethical luxury. It is the operating system of any destination that intends to remain desirable twenty years from now.

From counting heads to measuring value

The most important shift underway is conceptual: leading destinations are moving from volume to value from how many visitors arrive, to how much value each visitor leaves behind, and to whom. The policy toolkit is now well documented:

1. Access management: Venice's day-tripper access fee (launched 2024) is less about the €5–10 charge and more about data for the first time, the city can count rather than estimate who enters on peak days, even if numbers have so far fallen only modestly.

2. Housing protection: Barcelona has pledged to phase out all short-term tourist-apartment licences by 2028, aiming to return roughly 10,000 homes to residents.

3. Carrying-capacity caps: Athens now limits the Acropolis to 20,000 visitors per day through timed-entry slots protecting both the monument and the quality of the visit.

4. Cruise and flow management: from Dubrovnik's “Respect the City” caps to Amsterdam's phasing-down of cruise calls, destinations are learning to manage peaks rather than chase them.

5. Earmarked levies: Bali's visitor levy funds waste management and conservation, while Bhutan's long-standing “high value, low volume” philosophy treats access as a privilege that pays for preservation.

Measure what matters

None of this works without measurement. The EU's European Tourism Indicator System (ETIS) a locally led toolkit launched by the European Commission in 2013 tracks precisely what gross arrival numbers hide: resident satisfaction, average length of stay, repeat visitors, the quality of jobs created, and the share of local products in the supply chain. The Global Sustainable Tourism Council (GSTC) criteria provide the international benchmark. For most destinations, the single most strategic metric is economic leakage how much of the value tourism generates stays local. A hotel that sources from local farmers, producers and culture turns the same overnight stay into a multiplied local benefit.

The leadership takeaway

For destinations and for those of us who run hospitality businesses the implication is bracing but liberating sustainability is not a brake on growth; it is the licence to keep operating. The winning destinations of the next decade will not be those with the most beds or the cheapest flights, but those that protect their landscapes, keep their residents willing hosts, and convert visitors into longer stays and deeper local spending. Quantity and quality stop being rivals the moment we begin measuring the right things.

The question every destination should be asking is no longer “How do we attract more?” but “How do we create more value from those we already attract and make sure that value stays home?”

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Sources / References

• WTTC, Travel & Tourism Economic Impact Research (2025) — 2024 data: US$10.9tn, 10% of global GDP, 357m jobs.

• Lenzen, M. et al. (2018), “The carbon footprint of global tourism,” Nature Climate Change — 8% of global GHG emissions.

• Sun, Y.-Y. et al. (2024), “Drivers of global tourism carbon emissions,” Nature Communications — 8.8–9% by 2019, growing 2x+ faster than the economy.

• UN Tourism (UNWTO) — definition of sustainable tourism; UNWTO/UNEP, “Making Tourism More Sustainable” (2005) — the three pillars.

• City of Venice — “contributo d'accesso” day-tripper access fee (2024–2025).

• Barcelona City Council — phase-out of short-term tourist-apartment licences by 2028.

• Hellenic Ministry of Culture — Acropolis daily visitor cap (20,000) and timed-entry slots (2024).

• European Commission — European Tourism Indicator System (ETIS), 2013 / 2016 toolkit.

• Global Sustainable Tourism Council (GSTC) — Destination Criteria.