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The Climate Crisis of the World CupThe 2026 FIFA World Cup is shaping up to be not only the most politically combustible tournament in modern history but also potentially the most environmentally damaging. As soccer fans increasingly watch preparations through their fingers amid controversies over ticket prices, Iran's participation, and ICE's role, a more long-term peril is being overlooked: the tournament's staggering contribution to climate change.The Environmental Footprint of Expanded TournamentScientists conservatively project that the 2026 World Cup will generate around 9 million tons of carbon dioxide equivalent, nearly double the historical average for tournaments between 2010 and 2022. Air travel comprises approximately 7.7 million tons of this carbon budget—more than four times that of the average for previous tournaments. The worst-case upper estimate for air transport is about 13.7 million tons of CO2.This environmental disaster stems from FIFA's decision to expand the tournament from 32 to 48 teams while selecting three host countries—Canada, Mexico, and the US—that encompass a massive geographical expanse. The distances fans and teams need to travel make less carbon-intensive forms of transportation impractical, even with improved infrastructure.The Carbon Cost of FIFA's GreenwashingFIFA has long been a shameless purveyor of greenwashing. Ahead of the 2022 World Cup in Qatar, FIFA President Gianni Infantino implored soccer fans to "raise FIFA's green card for the planet" by recording messages about environmental preservation. In reality, the Qatar tournament was a "carbon bomb in sporty form" that necessitated more than 1,000 daily flights, used an energy-intensive desalination system, and relied largely on bogus carbon-offset schemes.The 2026 tournament is even worse. Scholar Tim Walters argues that this World Cup is the deadliest sporting event in history due to increased greenhouse gas emissions causing premature deaths—a sign of FIFA's "abject misanthropy."Travel Nightmares and Environmental HypocrisyThe geographical challenges are staggering. Bosnia and Herzegovina's squad will have to travel more than 5,000km from Toronto to Los Angeles to Seattle, with their training camp in Salt Lake City adding additional carbon miles. Algeria will rack up about 4,800km journeying from Kansas City to San Francisco and back. Czechia starts in Guadalajara before heading to Atlanta and then Mexico City, notching more than 4,500km.Lacquer on top of this is FIFA's sponsorship deal with Aramco, the state-owned Saudi energy behemoth that is the largest corporate greenhouse gas emitter on earth, responsible for more than 4% of all emissions since 1965. More than 100 professional female footballers, including some of the biggest names in the game, signed a letter condemning the partnership, citing environmental impacts as a serious problem.Extreme Heat Threatens Player and Fan SafetyPlayer safety is also in jeopardy thanks to extreme heat brought on by climate change. The National Weather Service is warning that every single region of the US will experience temperatures that exceed historical averages during the tournament. A Guardian analysis found that "high levels of heat and humidity will impact the ability of teams to perform on the field," with 26 matches likely to be played when the temperature is at or above 26C (78.8F) WBGT—a threshold beyond which cooling breaks are necessary.An academic study found that 14 out of 16 host cities are likely to experience average WBGTs that exceed 28C (82.4F) in June and July. While three of the cities most exposed to dangerous heat—Houston, Dallas, and Atlanta—have air-conditioned stadiums, the energy needed to power that cooling doesn't help climate change.The Path Forward for Sustainable SportsDr. Madeleine Orr of the University of Toronto, one of the authors of the heat study, noted the "lack of commonsense preparations by event organizers to keep people safe in extreme weather conditions." She added, "The only interest is in protecting athletes on the field, with basically no consideration for fans, staff, the media and volunteers working in the stands or on the streets."As climate litigation against unrepentant greenwashers continues to rack up wins, FIFA faces increasing pressure to align its actions with its environmental rhetoric. The 2026 World Cup represents a critical juncture for global sports organizations to either continue down a path of environmental destruction or begin implementing meaningful sustainability measures that address the climate crisis head-on.

The Heat Risk at the 2026 World Cup Climate experts have challenged FIFA after a warning that one in four World Cup games could be played in very hot conditions because global warming has increased the extreme heat risk since the US last hosted the tournament in 1994. Details of the Heat Warning Overheating concerns had already prompted FIFA to mandate a cooling break during each half of World Cup matches. They will be played in 16 stadiums across the United States, Mexico and Canada from June 11 to July 19. 26 of the 104 matches could be played where temperatures reach at least 26C in the Wet Bulb Globe Temperature (WBGT) index. 17 matches will be played in stadiums with cooling systems, reducing risks for players and fans. Five games are expected to be played in conditions of 28C WBGT or higher, a level that FIFPRO says should lead to the delay or postponement of matches. The Impact of Climate Change “Players and fans face a much higher risk of gruelling heat and humidity at the 2026 World Cup compared to the 1994 tournament on the same continent,” said World Weather Attribution (WWA), a network of climate scientists. “It’s dangerous for players, but of course there are also the fans who might gather outdoors, and they are at even more risk because they will not be taken care of by a lot of medical doctors,” said Friederike Otto, WWA co-founder and climate science professor at Imperial College London. FIFA's Response and Future Outlook FIFA has outlined preventive measures, including monitoring conditions in real time and applying contingency protocols if extreme weather events occur. The executive secretary of UN Climate Change, Simon Stiell, lent his voice to the warning, saying “The risk of dangerous heat has doubled” since 1994, which will put “players and fans at risk”.

The summer of 2026 is set to be unusually hot across North America, and the upcoming World Cup will be played under those conditions. Researchers and player‑representatives warn that elevated wet‑bulb globe temperature (WBGT) could make many fixtures unsafe for athletes and spectators. Heat Forecast for the 2026 World Cup Across North America The National Weather Service’s seasonal temperature outlook predicts above‑average temperatures for every U.S. region in June and July. With 48 men’s national teams converging on venues in the United States, Canada and Mexico, the tournament will be contested in an environment that is markedly hotter than the 1994 North‑American World Cup. WBGT Numbers Signal Elevated Risk for Multiple Matches World Weather Attribution (WWA) data estimate that 26 matches could see WBGT at or above 26 °C, the level at which Fifpro recommends cooling breaks. If the threshold is raised to 28 °C, only five matches are projected to hit that mark, though 45 matches still carry up to a 20 % chance of reaching it. A one‑in‑four chance exists for a game to experience WBGT of 30 °C. Compared with 1994, the number of matches expected to exceed 26 °C has risen by 52 %, and those above 28 °C have grown by 75 %. Miami venues are likely to exceed key temperature thresholds in every match. All stadiums except Azteca in Mexico City have recorded rising heat levels over the past 30 years. FIFA rules call for match suspension consideration if WBGT reaches 32 °C; Fifpro argues the limit should be lowered to 28 °C. Implications for Player Safety and Tournament Operations High WBGT combines temperature, humidity, radiant heat and wind, directly affecting player performance. A recent study in the journal Temperature found that in 31 of 57 Club World Cup matches, mean WBGT exceeded 28 °C, correlating with reduced distances covered at all speeds. Researchers concluded that “environmental heat stress significantly affects the physical performance of soccer players” and emphasized the need for heat‑mitigation strategies. What FIFA and Organisers May Do Ahead of the Heat Fifpro credits FIFA for listening to concerns and implementing some protective steps, though the union urges stricter thresholds. Potential actions include: Scheduling high‑risk games in cooler evening slots. Installing advanced cooling systems or shade structures at venues. Mandating mandatory cooling breaks when WBGT approaches 28 °C. Providing medical teams with heat‑stress protocols and hydration plans. Lead researcher Theodore Keeping of Imperial College London warns that the 28 °C threshold is “more likely than not” to be breached and that current assessments may be conservative, especially when direct sunlight intensifies conditions. Looking Ahead: Managing Heat Risks for Players and Fans As the tournament draws nearer, continuous monitoring of WBGT will be crucial. Stakeholders must balance competitive integrity with health safeguards, potentially revisiting FIFA’s temperature guidelines. The decisions made now will set precedents for future mega‑events held in warming climates.