New Delhi: Players competing in the 2026 FIFA World Cup could face more than just their opponents on the field, as rising global temperatures threaten to significantly impact match conditions, performance, and player safety. A recent analysis by Climate Central has raised concerns that the tournament may be played under some of the hottest conditions in its history, driven largely by climate change.

The expanded 2026 World Cup, which will be jointly hosted by the United States, Mexico and Canada, is already being projected as the biggest edition of the tournament with 48 teams and 104 matches. However, alongside its scale comes a growing environmental challenge that could reshape how the game is played.

Heat likely to affect majority of matches

According to the Climate Central analysis, 97 out of the 104 scheduled matches are now more likely to experience temperatures above 28 degree Celsius — a threshold widely associated with declines in football performance. The study indicates that nearly half of all matches have at least a 50 per cent chance of being played in such heat conditions.

More significantly, in 26 matches, climate change has increased the likelihood of crossing this temperature threshold by at least 10 percentage points. These findings highlight how global warming is not just a distant threat but an immediate concern for international sporting events.

One of the most affected fixtures is expected to be the group-stage clash between Uruguay and Spain in Guadalajara on June 26. The probability of performance-impairing heat during this match has risen to 70 per cent, marking a sharp increase of 37 percentage points due to climate change.

Impact on performance and gameplay

Experts warn that temperatures above 28 degree Celsius can have a measurable impact on player performance. Scientific studies have shown that such heat conditions can reduce sprinting ability, lower the total distance covered by players, and slow recovery rates during matches.

These physiological effects could lead to a noticeable change in the pace and intensity of games. Teams may be forced to adopt more conservative tactics, focusing on energy conservation rather than high pressing or fast transitions.

Norway midfielder Morten Thorsby highlighted the broader implications, stating that heat not only poses a health risk but also alters the nature of football itself. Reduced sprinting and slower recovery could fundamentally change match dynamics, potentially affecting the overall quality of the tournament.

Growing concerns among experts

The findings have prompted increased scrutiny from health, climate, and sports-performance experts, many of whom are urging FIFA to strengthen its heat-safety protocols ahead of the tournament. An open letter signed by leading international experts has criticised the governing body’s current guidelines as insufficient.

The letter warns that some host cities could experience temperatures exceeding internationally recognised high-risk thresholds for athletic competition. Professor Mike Tipton of the University of Portsmouth emphasised that playing in high heat conditions affects not just player safety but also tactical decisions, tempo, and the quality of play.

Experts are calling for measures such as revised match timings, extended cooling breaks, improved hydration strategies, and potentially even rescheduling games in extreme conditions.

Climate change and football’s future

The issue also brings into focus the broader relationship between climate change and global sport. Climate Central meteorologist Shel Winkley pointed out that football, like many outdoor sports, is already being reshaped by a warming planet.

He noted that future World Cups may differ significantly from those of the past, not because of changes in players or tactics, but due to environmental factors. Increasingly frequent and intense heatwaves are expected to pose challenges for tournament organisers, players, and fans alike.

Adding to the debate is criticism of FIFA’s sponsorship ties with major oil companies, which some experts argue present a conflict of interest. They contend that promoting fossil fuels while dealing with climate-driven risks undermines efforts to safeguard player welfare.

A tournament under pressure

With the 2026 FIFA World Cup set to span 16 cities across North America, organisers face the complex task of balancing logistical scale with environmental realities. The tournament’s timing during the summer months further heightens the risk of extreme heat.

As anticipation builds for what promises to be a historic edition of the World Cup, the spotlight is increasingly shifting towards how well organisers can adapt to these emerging challenges.

Conclusion

The 2026 FIFA World Cup is poised to be a landmark event in football history, but it may also serve as a turning point in how climate change influences global sport. With a majority of matches expected to be played in potentially performance-impacting heat, the need for proactive measures has never been greater.

Ensuring player safety while maintaining the integrity of the game will be critical. As experts continue to raise concerns, FIFA and host nations will be under pressure to respond effectively, setting a precedent for future tournaments in an increasingly warming world.