Climate change could make the World Cup dangerous
A Climate Central analysis found that climate change will likely cause extreme heat and humidity during 97 of the 104 matches of the 2026 FIFA World Cup in the U.S., Canada, and Mexico, impairing player performance in nearly half of them. Experts warn that high temperatures and humidity could lead to dehydration, cramps, and fatigue, while also slowing down gameplay and prompting potential schedule changes for future tournaments.
The 2026 FIFA World Cup, set to take place from June 11 to July 19 across the U.S., Canada, and Mexico, faces a growing threat from climate change. A study by Climate Central predicts that 97 of the 104 scheduled matches will experience heat levels that could impair player performance, with nearly half (49) having at least a 50% chance of extreme conditions. In 26 of those matches, climate change increases the likelihood of dangerous heat by at least 10 percentage points. Kaitlyn Trudeau, a senior research associate at Climate Central, stated that the tournament will not only face higher temperatures but also increased humidity, worsening conditions for players. Several host cities are expected to exceed 78 degrees Fahrenheit without internal cooling systems, posing serious health risks. Chris Minson, a physiology professor at the University of Oregon, explained that intense exertion in such conditions forces the body to convert 75% of energy into heat, leaving only 25% for physical performance. This imbalance can lead to dehydration, muscle cramps, and heightened fatigue. Experts warn that humidity is particularly dangerous because sweat evaporates less efficiently, reducing the body’s natural cooling mechanism. Reuters highlighted that prolonged exposure to these conditions could force players to slow down, affecting both speed and endurance. Ryan Calsbeek, a Dartmouth College biology professor, noted that athletes may struggle to maintain explosive power and aerobic endurance under extreme heat. To mitigate risks, organizers may introduce early kickoffs, cooling breaks, and air-conditioned stadiums. There are also discussions about shifting future World Cups to cooler months, such as March or October, starting after 2030. For now, weather-related delays and adaptive measures will likely become standard features of the tournament. The analysis underscores how climate change is reshaping global sporting events, with long-term implications for athlete safety and competition dynamics.
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