Can we celebrate sustainably?

Can we celebrate sustainably? Rethinking seasonal traditions in a warming world

Celebration is a universal human instinct. Across societies, people mark transitions such as the turning of seasons, the close of a year, personal milestones, or moments of collective significance. These rituals offer connection, continuity, and joy; they bring families together, strengthen social bonds, and provide a pause from daily routines. The ways in which we celebrate have evolved dramatically over recent decades. What were once typically modest, community-centred events have increasingly become occasions characterised by heightened consumption and resource use. As the effects of climate change and other environmental crises worsen, we need to rethink celebrations, preserving their meaning and significance, but in ways that do not amplify environmental degradation. 

The environmental impact of celebration is not tied to any single cultural or religious tradition. It arises primarily from the ways in which contemporary celebrations are performed. Many of these celebrations involve large gatherings, travel, meals, gift exchanges, and decorative displays. These practices create predictable spikes in environmental footprint. The phenomenon has been studied across high-income and middle-income settings alike, where energy demand, emissions, and waste generation show a noticeable climb during festive seasons. And notably, through these customs – and across communities – well-intentioned behaviours increasingly interact with broader capitalistic, materialistic systems of production and consumption. 

One of the main contributors to festive environmental footprints is travel. In many countries, the days surrounding major celebrations are the busiest travel periods of the year. Millions move simultaneously from urban centres to hometowns, or between regions and countries, often for relatively short stays. The resulting surge in flights, intercity buses, and private car journeys creates a temporary but intense emissions spike. Aviation in particular remains one of the most carbon-intensive forms of transport, and despite improvements in efficiency, the environmental burden of concentrated festive travel is substantial. Even where public transport networks are strong, the timing and density of travel demand stretch system capacity and resources. For families, the social importance of gathering is unquestionable; yet from an environmental perspective, the cumulative effect of highly synchronised travel is considerable.

Food is another aspect of celebration that carries both cultural significance and environmental implications. Festive meals are expressions of generosity, hospitality, and shared identity, often involving dishes prepared only at certain times of the year. However, the scale of production associated with seasonal feasting can be resource-intensive. Food waste is a particular issue. Studies consistently show that household waste increases noticeably during festive periods, driven by over-purchasing and preparation of more dishes than can reasonably be consumed – practices often rooted in social expectations of abundance. Globally, food waste is responsible for considerable greenhouse gas emissions, making it one of the most consequential contributors to celebration-related environmental impact.

Beyond travel and food, modern celebrations often centre around the exchange of gifts, an expression of care, but also a driver of consumption. The rise of global e-commerce has intensified this pattern by enabling rapid, convenient, and sometimes impulsive purchasing. The environmental impact is distributed across manufacturing processes, supply chains, packaging, and last-mile delivery. Many gifts are short-lived, novelty-oriented, or difficult to recycle, contributing to a growing stream of post-holiday waste. Packaging alone, much of it single-use and difficult to process, becomes a substantial burden on municipal waste systems. While gift-giving traditions are meaningful, the scale and materiality of contemporary gift-giving are often shaped more by consumerism and social expectations than by intrinsic cultural needs.

Decorations and lighting are another contributor of festive environmental impact. In many places, households and public spaces are more brightly illuminated during celebratory periods. These displays create shared ambience and collective mood, but they also contribute to increased energy demand. Although the transition to energy-efficient lighting technologies has helped reduce the impact, decorative items themselves – often made from plastics or synthetic materials – are often used briefly and discarded, contributing to waste. Seasonal décor that follows rapidly shifting aesthetic trends can exacerbate this cycle.

Understanding the environmental impact of celebrations requires a shift from viewing these behaviours as isolated choices to seeing them as part of a larger system. Individual decisions about what to buy, how to travel, and how much food to prepare are often shaped economic systems and social norms around consumerism and materialism. Seasonal marketing campaigns prime consumers to associate celebration with material abundance. Meanwhile, urban design influences mobility choices, making low-emission travel easier or harder. Supply chains determine whether goods are produced transparently, with recyclable materials and repairable components, or whether they are destined for landfill after minimal use. This systems perspective is essential, because it suggests that solutions must operate not only at the level of individual behaviour but also through structural shifts that reshape what is considered ‘normal’ ways of celebrating.

Rethinking celebration in a warming world does not require abandoning traditions, but it does invite a reframing of what makes celebrations meaningful. For many families, the most valued aspects of festive periods are not material objects, but time spent together, shared meals, and the creation of memories. Redesigning celebrations around these values rather than consumption-driven expectations can offer both environmental and social benefits. Alongside this, actions can be taken to reduce the environmental impact of current practices. For example, material gifts might be substituted with shared experiences such as outdoors activities or hobby workshops. Choosing locally produced goods supports regional economies and reduces transport-related emissions. Extending the life of decorations through reuse or repair can reduce novelty-led turnover and foster a sense of continuity and tradition. Even small adjustments to travel, such as combining visits or opting for lower-emission modes when feasible, can reduce the seasonal emissions spike. Planning meals more intentionally, avoiding over-purchasing, and aligning dishes with seasonal availability can reduce food-related environmental impact.

Importantly, change does not rest solely on individual households. Municipalities, businesses, and cultural institutions all play a role in shaping how celebrations unfold. Cities can design low-waste public events or improve transport options during peak travel periods. Retailers can provide more transparent information about environmental impacts, reduce unnecessary packaging, offer repair services, or engage in sustainability-focused marketing campaigns. Hospitality sectors can design festive menus that highlight seasonal produce and minimise waste. 

None of this implies that the environmental challenges of festive seasons are trivial or easily solved. The scale of global emissions and waste generated during celebration periods reflects deeply embedded economic and cultural patterns. Cultural change often emerges through experimentation. Festive periods offer space to test ways of celebrating that are less resource-intensive. When people experience that celebrations remain meaningful, or even become more so, despite lighter consumption, norms can begin to shift. And when those adjustments are supported by systems change, they can contribute to a broader transition towards more sustainable forms of social life. 

In the end, celebration is about meaning, not materialism. As environmental crises accelerate, reimagining how we celebrate is both a responsibility and an opportunity. The ways we choose to celebrate today may shape the kind of world that future generations are able to celebrate in.