With the twenty-third edition of the FIFA World Cup just days away, people have been dissecting everything about it in meticulous detail. Usually, the World Cup is heralded as the biggest celebration of the most popular sport on the planet, bringing billions of people from all over the world together in support of their team, and appreciation of the talent on display.

This one, however, was always destined to be a bit different from the norm. Besides the obvious, yet unprecedented geopolitical implications of a sporting event partly held in the United States, a country currently engaged in overseas military conflict, many have come to question what the event’s carbon footprint will be when the dust settles, and the broader ramifications it may have on our world.

The 2026 FIFA World Cup is set to be the biggest tournament in the competition’s history, with 48 teams, 104 matches, and 16 host cities across the United States, Mexico, and Canada. On paper, this marks an exciting expansion for football, offering more nations the opportunity to participate and more fans the chance to experience the tournament in person.

However, the environmental cost of such expansion is difficult to ignore.

According to recent studies, the 2026 World Cup could generate around 7.8 million metric tons of carbon dioxide. That would be more than double the official reported emissions of the 2022 World Cup in Qatar, and roughly equivalent to the annual emissions of Sierra Leone.

The main issue is not simply that the tournament is bigger. It is where and how it is being held. Unlike more compact World Cups, this edition will be spread across 3 vast countries, forcing teams, officials, media, and fans to travel enormous distances between matches.

When people think about the environmental impact of a World Cup, they may immediately imagine stadium lights, waste, construction, or broadcasting operations. Yet the aforementioned assessment suggests that the biggest source of emissions will be something far more ordinary: fans getting to the games.

Spectator travel is expected to account for around 87% of the tournament’s emissions. International fans may make up just over a third of total attendance, but they are expected to generate nearly three-quarters of travel-related emissions.

This is where the tournament’s structure becomes a major environmental challenge. A fan attending matches in different host cities may need to fly between countries, cross time zones, and travel thousands of kilometers. What may look like an inclusive, continent-wide football celebration also becomes a logistical machine powered largely by air travel.

To be fair, not every comparison with Qatar works against the 2026 tournament. One major difference is infrastructure. Qatar built several new stadiums for the 2022 World Cup, which significantly increased the event’s construction-related footprint. The 2026 edition, by contrast, will rely heavily on existing venues, reducing the environmental burden linked to new stadium development.

Accommodation may also be less carbon-intensive than it was in Qatar, where extreme heat required constant industrial air conditioning. In that sense, the North American tournament avoids some of the obvious mistakes of previous editions.

But this is also what makes the issue more complicated. The 2026 World Cup may be more sustainable in some areas while still becoming the highest-emitting edition overall. Sustainability, in this case, is not just about avoiding new stadiums. It is about the entire design of the event.

FIFA has previously committed to cutting emissions by 50% by 2030 and reaching carbon neutrality by 2040 under the UN Sports for Climate Action Framework. Yet its sustainability strategy for 2026 reportedly does not include a clear carbon target for the tournament itself.

That absence matters. Without measurable targets, ambitious language can easily become a formality rather than a real environmental plan.

Global sporting events can still be powerful opportunities for climate-forward change. Paris, for instance, used the 2024 Olympics to lean heavily on existing infrastructure, invest in public transport, and promote lower-impact planning.The World Cup could follow a similar model, pushing host cities to improve rail networks, cleaner mobility, stadium efficiency, and long-term urban planning.

The question is whether organizers are willing to treat sustainability as central to the event, rather than as a side note.

Football’s biggest stage has always reflected the world around it. In 2026, that reflection may be uncomfortable. The tournament will show the scale, emotion, and commercial force of modern sport. It may also show how difficult it has become to separate global celebration from global consequence.