Greta Jimenez
Tourism is a powerful economic sector, contributing $10.9 trillion to the global GDP in 2024, according to the World Travel & Tourism Council. However, it is also responsible for approximately 8% of global carbon emissions. The environmental impact of tourism is extensive, from carbon emissions to habitat degradation and rising emissions, posing serious challenges that demand immediate attention. The construction of new buildings and infrastructure for tourism contributes to energy-intensive processes and the release of stored carbon. Tourism-induced air pollution includes NOx, PM2.5, PM10, CO, and SO2 emissions, with aviation being the largest contributor to tourism emissions. As the number of travellers increases, so does the impact on the environment, and the industry's carbon footprint is expected to grow.
| Characteristics | Values |
|---|---|
| Percentage of world's carbon emissions | 8% |
| Carbon emissions sources | Plane flights, boat rides, souvenirs, lodging, construction, roads and other infrastructure, clearing of natural areas |
| Tourism-induced air pollution | NOx, PM2.5, PM10, CO, SO2 emissions |
| Tourism's impact on the environment | Pollution, habitat degradation, rising emissions, noise and light pollution |
| Aviation's contribution to tourism emissions | 52% of the sector's direct carbon footprint |
| High-end tourist accommodations energy use | 34% of tourism's indirect CO2 emissions |
| Tourism's contribution to GDP | $10.9 trillion or nearly 10% of the total economic output |
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What You'll Learn
Aviation emissions
Aviation contributes around 2-2.4% of global CO2 emissions, and when combined with other gases and water vapour trails, the industry is responsible for approximately 5% of global warming. This figure is expected to grow as the number of passengers is projected to double in the next 20 years, outpacing the improvements in fuel efficiency.
The impact of aviation emissions on the environment is not limited to CO2 alone. Aircraft engines also release other substances such as water vapour, soot, and nitrous oxides, which have a significant heat-trapping effect at high altitudes. This further exacerbates the problem of global warming and climate change.
To address these environmental concerns, the aviation industry has set ambitious targets. Airports and aviation companies are investing in new technology, operations, and infrastructure to improve efficiency and transition to sustainable aviation fuels. The sector has committed to achieving net-zero emissions by 2050, exploring various approaches such as taxes, subsidies, infrastructure investments, sustainable fuels, and behavioural changes.
While the industry works towards these goals, individuals can also play a role in reducing their aviation emissions. The most effective way is to reduce the number of flights taken. Additionally, when flying, choosing airlines with newer aircraft models and economy tickets can help lower emissions, as newer planes tend to be more efficient, and business or first-class seats emit more per passenger.
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Construction and infrastructure
Tourism has a significant impact on the environment, contributing to pollution, habitat degradation, and rising emissions. The construction of new infrastructure to accommodate tourists, such as hotels, resorts, roads, and airports, can have detrimental effects on natural habitats and ecosystems.
The development of tourism infrastructure often burdens natural capital through over-consumption, leading to soil erosion, pollution, loss of natural habitats, and the endangerment of species. The construction process itself generates carbon emissions through the manufacturing and transportation of materials, and the construction of buildings. The clearing of natural areas, such as forests, for new infrastructure releases stored carbon back into the atmosphere, exacerbating climate change.
Tourism facilities produce significant carbon emissions, even before tourists arrive. High-end accommodations, such as resorts and hotels, demand large amounts of energy for heating, cooling, and lighting, contributing to tourism's indirect CO₂ emissions. The construction of roads and other infrastructure for tourism also contributes to climate change and environmental degradation. The development of tourism infrastructure can lead to deforestation, alteration of land, depletion of natural resources, and disruption to local ecosystems.
In addition to the direct impacts of construction, tourism-induced pollution is also a concern. The influx of tourists can surpass local waste management capacity, leading to pollution. Aviation, local transport, and the energy demands of tourist accommodations contribute to tourism's carbon footprint. As the number of travellers continues to rise, the impact of tourism on the environment becomes increasingly significant, posing serious challenges that require urgent attention.
While tourism can have negative consequences, it is important to note that it can also play a positive role in conservation and sustainable development. Through revenue generation and increased awareness, tourism can help fund conservation efforts, support local communities, and create incentives to preserve nature and culture. However, the rapid development of the tourism industry has sparked controversies, with scholars arguing that economic growth driven by tourism comes at the cost of pollution and environmental degradation.
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Energy usage in accommodation
Accommodation facilities, such as hotels, resorts, and rental properties, require energy for heating, cooling, lighting, and powering appliances. This energy demand is met primarily through the burning of fossil fuels, which releases pollutants like nitrogen oxides (NOx), sulfur dioxide (SO2), and particulate matter (PM2.5) into the atmosphere. The use of non-renewable energy sources in the accommodation sector contributes to environmental degradation and climate change.
To reduce pollution, the accommodation sector should transition to cleaner energy sources and energy-efficient practices. This includes adopting renewable energy technologies such as solar, wind, and tidal power. For example, solar photovoltaic (PV) systems can convert sunlight into electricity, generating no pollution or greenhouse gas emissions once installed. Implementing energy-saving measures, such as energy-efficient lighting, better insulation, and smart thermostats, can also help reduce energy consumption and associated pollution.
Additionally, the construction and infrastructure associated with the tourism industry contribute to pollution. Building construction and capital formation for infrastructure account for a significant portion of a country's ecological footprint. Therefore, sustainable practices in the construction and operation of accommodation facilities are crucial to reducing pollution. This includes using eco-friendly building materials, implementing waste management strategies, and adopting water conservation practices.
By endorsing clean energy initiatives and sustainable practices, the accommodation sector can play a pivotal role in mitigating pollution and contributing to environmental conservation. This not only benefits the environment but also enhances the sustainability of the tourism industry itself, ensuring that destinations remain attractive and resilient in the face of climate change.
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Local transport
Tourism is responsible for around 8% of global carbon emissions, with aviation contributing to 40% of these emissions. Transportation is the main source of tourism's greenhouse gas emissions. On average, planes and cars produce the most CO2 per passenger mile, with tour buses, ferries, and trains producing less.
The development of tourism can have a significant impact on local transport and its emissions. As tourism increases in an area, so does the demand for local transport, which can lead to increased traffic volume and congestion. This can result in higher emissions, particularly in areas with a high ratio of tourist arrivals to local inhabitants.
Tourism can also bring about improvements in local transport infrastructure, such as the development of roads, railways, and airports. This can have both positive and negative effects on pollution levels. While improved infrastructure may reduce travel times and congestion, it can also attract more tourists and increase the overall volume of traffic.
In addition, the type of transport used by tourists can vary depending on the region and the level of development. In less developed areas, for example, tourists may be more likely to use cars or planes, which have higher emissions. In contrast, in more developed areas with efficient public transport systems, tourists may be more likely to use trains or buses, which have lower emissions per passenger mile.
To reduce the environmental impact of local transport in tourist areas, several measures can be implemented. These include encouraging the use of public transport, promoting walking and cycling, and investing in low-emission vehicles and infrastructure. Additionally, local governments can implement regulations and policies to manage traffic flow and reduce congestion, such as congestion charges or low-emission zones.
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Noise and light pollution
Tourism significantly contributes to noise pollution, which can have detrimental effects on both humans and wildlife. Sources of noise pollution from tourism include airplanes, cars, buses, recreational vehicles such as snowmobiles and jet skis, and loud music played by visitors. Constant exposure to noise pollution has been linked to various health risks in humans, including high blood pressure, heart problems, stress, and irregular sleep patterns.
Noise pollution also causes disturbance, stress, and hearing loss in wildlife, particularly in sensitive areas. It disrupts the natural behaviour of animals, affecting their ability to survive, reproduce, and interact with other species. For example, sound is essential for some animals to attract mates, find food, or avoid danger. Additionally, noise pollution has been shown to modify the behaviour and physiology of marine invertebrates, increasing their infection risks and altering their spawning behaviour.
Light pollution, caused by artificial lighting at night, is another consequence of mass tourism. Sources of light pollution in the tourism industry include streamers, billboards, strobe lights, and spotlights. Artificial lighting can alter natural lighting levels, impacting the health of both humans and animals. It can disrupt the biological rhythms of living organisms, modify species assemblages, and lead to habitat fragmentation. Light pollution is particularly harmful to birds and insects, impairing their physiology and behaviour and contributing to their gradual disappearance worldwide.
The effects of light pollution on specific species vary. For example, baby sea turtles instinctively move towards the brightest area, which is typically the ocean. Light pollution from coastal developments can disorient them, leading them away from the ocean and towards potential dangers. In contrast, wild boars, an urban wildlife component in many cities, have shown a negative relationship with artificial lighting, avoiding areas with excessive lighting.
Addressing noise and light pollution in the tourism industry is crucial for mitigating their negative impacts on biodiversity and ecosystem services. Regulatory bodies, civil society, and local and regional decision-makers play vital roles in developing measures to assess, prevent, and mitigate these adverse effects.
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Frequently asked questions
Tourism is responsible for about 8% of the world's carbon emissions. Aviation is the largest contributor, responsible for 52% of the sector's direct carbon footprint.
Tourism-induced air pollution includes NOx, PM2.5, PM10, CO, and SO2 emissions. The construction of new buildings and infrastructure for tourism also generates carbon emissions.
Tourism can cause noise and light pollution, which can disturb wildlife and affect their natural behaviours. The introduction of non-native species through tourism can also upset the ecological balance of an area.
Tourism can be managed responsibly to minimise harm and protect destinations. Hotels and resorts can contribute by utilising clean energy sources and reducing their carbon footprint.
