Sustainability has become an important concept in discussions on economic development and environmental protection and within the broader field of international tourism. As climate change and resource depletion advance, industries that rely on the environment are likely to have to evolve to be more sustainable. The hotel industry is one of the sectors that are most visible in this regard: it is an energy-, water- and waste-intensive industry, often located in already resource-stressed areas. Meanwhile, global travel is continuing to grow, with hotels being a driver for economic success and a symbol of sustainability for local communities.
As a response to those concerns, hotels have developed numerous programs to diminish their environmental impacts. Over the past two decades, the green hotel has developed into the dominant model of sustainability in hospitality. Energy efficient lighting, low flow plumbing fixtures, linen reuse programs, waste reduction systems, and eco-certification schemes are widely adopted throughout the hotel industry and are often seen as evidence of hotel managers moving towards sustainable development in their operations.
These hotels are popular due to the perception that green hotels harmonize green ethos with enterprise, and because many measures save money while improving brand image and consumer confidence. Green labels can offer consumers peace of mind that their travel and lodging choices were earth-friendly. As a result, they are by far the most widely used method of measuring hotel sustainability by the hotel industry and consumers.
However, a lot more pressure is put on the environment, water supply, energy supply, waste, and habitat in destinations where a large proportion of hotels are green certified. In destinations where the economy is totally or mostly based on tourism (e.g., arid areas and islands), water supply pressure is likely to continue even when water saving technologies are adopted. This raises the question of whether the sustainability agenda of the hospitality industry is contributing to sustainable development or merely the illusion of progress in this field.
Property-level improvements in the context of the green hotels model are the most common form of engagement because they are easy to implement without changing the business model or guest experience and provide immediate economic benefits. This is a radical departure from a past in which environmental issues were at best of peripheral concern to hotel operators. The use of sustainability language in hospitality is now mainstream, indicative of a society that is increasingly aware of the environment and identifies no conflict between business andenvironmental performance.
The scope of most of these efforts is narrow: at the hotel level, sustainability might be most relevant for operations rather than for development. Furthermore, environmental performance is typically determined by resource intensity per guest night rather than cumulative impacts beyond the hotel property boundary (scope 3 emissions). This framing, which influences discourse on hotel success, may also take attention away from connecting hotel operations to regional tourism and resource systems.
The green hotel model does not distinguish between environmental efficiency and sustainable development. Environmental efficiency is using fewer natural resources per unit of output without altering a system's productivity level. In the hospitality industry, for example, this can be achieved by reducing water and energy usage per guest. Efficiency measures are necessary but not sufficient for sustainability. Sustainable development is broader than limiting the use of environmental resources or inter-generational equity; it also includes economy-society-environment couplings in human systems.
In tourism growth scenarios, hotels become more efficient, but hotel supply is expanded. Thus, the environmental footprint of the tourism sector increases. However, an increase in hotel efficiency also results in a decrease in marginal environmental impacts--the environmental impacts associated with the next unit of hotel capacity from tourists. More sustainable destinations may have greater water, energy, and waste impacts. This is where assessment of scale and cumulative impacts becomes important, a key characteristic of sustainable development.
For instance, proponents of the green hotel model might say that energy savings are just another step on the path to sustainability, and that small steps compounded over a long time can make a difference. This may or may not be true in the absence of restrictions on growth or cumulative demand. Thus, an increase in efficiency can support economic growth, producing a rise in environmental pressure even though sustainability indicators are clearly becoming more positive. Efficiency by itself cannot prevent overconsumption of resources under unlimited development.
The limitations of the green hotel model are particularly obvious when applied to resource-constrained destinations. In water stressed areas or those with limited infrastructure capacity, hotels that meet an internal efficiency target may worsen external resource scarcities. Economic, social and environmental sustainability are sometimes framed strictly in terms ofoperations impacts. A hotel may be efficient but environmentally unsustainable in a local context, for instance if the locale cannot absorb the demand from higher hotel occupancy levels.
The green hotel framework also has the limitation that it often remains voluntary, meaning sustainability measures are at the discretion of the individual operators rather than operationalized in governance frameworks. This leads to some hotels implementing wide-ranging sustainability measures while others only do the minimum required, with both groups benefitting from the perception that sustainability is present in the destination. Without strong accountability measures, voluntary measures are unlikely to help drive improvement in the sector.
In this respect, certification schemes and sustainability branding may help to signal environmental commitment, alongside other action prompted by business in response to industry pressures. However, voluntary schemes cannot succeed as the only approach to helping the tourism industry develop truly sustainable practices.
Environmental efficiency and sustainable development gaps can be useful for policy makers, planners, and hotel managers, but policies based only on environmental efficiency overlook the long-term environmental limits and social trade-offs of narrowly defined sustainability. Despite job creation, increased income, and other benefits, many negative externalities are associated with tourism, and improved hotel performance alone cannot serve as an indicator of tourism's impact on development.
Transitioning beyond the green hotel model does not involve giving up on initiatives already in the pipeline. It should start with incorporating efficient practices into the development process. Establishing baseline sustainability expectations that are reflective of local environmental conditions may foster more consistency, while extending sustainability assessment to the destination level may enable more accurate cumulative impacts analyses. An alignment between hotel development, land use planning, infrastructure capacity, and environmental management strategies would further support long-term resilience.
Despite representing a meaningful advance in the hospitality industry’s sustainability journey, green hotels may have serious limitations in the context of sustainable development. Regulator approaches based on efficiency and voluntarism lack the capacity to address cumulative impacts, access to local resources, or the future of development. Although the green hotel model represents meaningful progress in environmental efficiency, true sustainability in the hospitality sector requires a broader development approach that addresses tourism growth, cumulative environmental impacts, and long-term resource limits.