More tourists are good news for Thailand. But not if the country cannot cope with the pressures they bring.
Tourism is one of Thailand's biggest sources of income. For decades, success was measured by the number of visitors. That yardstick no longer tells the whole story.
More visitors mean more revenue. They also mean greater pressure on local capacity. The challenge is to make sure that tourism money does not come at the expense of natural resources, local communities, public infrastructure, and the industry's long-term competitiveness.
It's a tough balancing act. The government's plan to cut the visa-free stay from 60 days to 30 days reflects that dilemma.
The debate is no longer about tourist numbers alone. It is about how Thailand copes with overtourism. Left unchecked, those pressures can gradually destroy the very places visitors come to experience.
The timing is significant as global tourism is moving from quantity to quality. Travellers now increasingly prefer destinations that protect the environment and manage tourism responsibly.
For Thailand, sustainability is no longer a nice idea to talk about. It is key to the tourism industry's survival. It is part of what travellers expect -- and what destinations need to remain competitive.
One important part of that transition is low-carbon tourism.
Thailand has begun laying the groundwork. The Green Hotel Plus programme has raised environmental standards for hotels, while the Green Destination Standards seek to extend sustainability beyond accommodation to tourist attractions, local communities and small tourism businesses. Carbon accounting tools have also been developed for hotels and low-carbon tourism routes.
These are steps in the right direction. They show that Thailand has begun preparing its tourism industry for a world where both global markets and travellers increasingly expect sustainability.
But the picture is far from complete.
The many standards, certification schemes and carbon assessment tools remain fragmented, with most still operating on a voluntary basis. They often exist alongside one another rather than as parts of a single, coherent system. Green Hotel Plus, Green Destinations Standard, Green Health Hotel, Green Leaf Certification and carbon measurement systems all operate alongside one another without a shared roadmap for the industry's transition.
Also, there is still no common pathway that clearly defines baseline standards for tourism operators, financial incentives or government support measures.
The result is confusion. As a result, many businesses are left to figure things out for themselves instead of moving in the same direction as the rest of the industry.
The imbalance becomes even more obvious in practice. Large tourism businesses generally have the financial resources, skilled personnel and management systems needed to meet sustainability standards. Many smaller operators do not. Limited funding, technical knowledge, and operational capacity prevent them from fully participating in these programmes.
If nothing changes, the drive for sustainability could produce winners and losers. The biggest companies would pull further ahead, while smaller businesses would fall even further behind. Instead of lifting standards across the industry, it could widen the gap between those with the resources to adapt and those without.
There is another concern. Many of today's policies still do not focus enough on cutting emissions where they are greatest.
Evidence shows that the main sources of emissions in the tourism sector are transportation and energy use throughout the tourism supply chain.
Yet many existing measures continue to concentrate on accommodation standards, business certification, carbon offsetting and pilot projects in selected destinations.
Unless policies address the main sources of emissions, Thailand's shift towards low-carbon tourism may amount to little more than surface-level adjustment rather than genuine structural change.
But reducing carbon emissions alone will not make Thai tourism sustainable.
Viewing sustainability only through an environmental lens addresses only part of a much larger challenge. Economic and social sustainability are equally important.
Tourism cannot be considered sustainable if income remains concentrated among a limited number of destinations, if businesses remain vulnerable to future shocks or if local communities continue to bear the hidden costs of tourism growth.
Although tourism generates substantial revenue for Thailand, much of that income is still concentrated in only a few provinces. Many other areas have yet to translate tourism into meaningful local economic development.
That begs a simple question: who is really benefiting from tourism? Despite the money it brings in, much of the income still ends up in just a handful of provinces. Many other destinations have yet to turn tourism into lasting gains for local people.
The environmental picture is no less troubling.
Thailand needs to do more than project a green image. It needs to manage tourism better.
Phuket shows why. As visitor numbers and tourism-related businesses have grown, so too have the strains on waste disposal, wastewater treatment and public infrastructure. In some places, local systems are already struggling to keep up.
Safety is another weak spot. Accidents and other incidents involving foreign visitors continue to make international headlines, chipping away at confidence in Thailand as a tourist destination.
All this shows that sustainable tourism is not just about greener hotels or a few carbon-cutting projects. It is about whether the whole system can keep pace with growth without the pressures becoming more than it can handle.
At the same time, tourism itself is increasingly exposed to the effects of climate change.
Droughts, floods, extreme heat, coastal erosion and the deterioration of marine ecosystems, including coral reefs and beaches, all threaten the natural assets on which Thailand's tourism industry depends.
The challenge is that these risks differ from one area to another. A single nationwide solution will not work everywhere.
No two destinations face exactly the same risks. There is no one-size-fits-all solution. Each destination needs a different answer to meet local challenges.
That is where the government comes in. It needs to provide reliable information, invest in better infrastructure, get agencies working together and help local communities and tourism businesses prepare for the growing impacts of climate change.
Tourism will not become sustainable through standards and projects alone. It takes a different mindset -- one that recognises economic growth, environmental protection, thriving local communities and climate resilience as goals that must go hand in hand, not competing with one another.
That means bringing standards, incentives, infrastructure, safety, income distribution, and climate adaptation into a single coherent framework rather than allowing them to evolve independently.
Thailand's tourism industry may well continue to grow in numbers. But unless that growth rests on stronger foundations, each additional visitor could add a little more strain to a system already under pressure.
Tourism has always relied on places people want to experience. Protecting those places -- and the communities that sustain them -- may prove to be the country's best investment in the industry's future.
Nopparuj Chindasombatcharoen, PhD. Is a Research Fellow, and Wirin Khowrat is a researcher at the Thailand Development and Research Institute (TDRI). Their policy analyses appear in the Bangkok Post on alternate Wednesdays.
