The 2026 FIFA World Cup, set to be held across the United States, Canada, and Mexico, is on track to become the most polluting tournament in history, with projections estimating around 9 million tons of carbon dioxide equivalent emissions. This figure is nearly double the historical average for World Cups, largely due to the increased number of participating teams and the vast geographical spread of host cities. Air travel alone accounts for approximately 7.7 million tons of these emissions, significantly higher than previous tournaments. Critics have condemned FIFA for its lack of meaningful sustainability initiatives, particularly following its controversial partnership with Aramco, the world's largest corporate greenhouse gas emitter. Furthermore, the tournament poses serious health risks for players, as extreme heat is expected during the summer months, with many host cities likely to exceed critical temperature thresholds. Despite FIFA's attempts to address these issues with evening matches and hydration breaks, the measures have been deemed insufficient, leading to growing concerns about the environmental and health impacts of the event.