The 2026 FIFA World Cup is forecast to generate nearly twice the greenhouse gas emissions compared to prior tournaments. This significant increase is primarily attributed to the expanded format of the competition, featuring more teams and consequently, increased travel demands. The larger number of participating teams necessitates substantially more flights, contributing heavily to the projected rise in carbon emissions. Experts suggest this World Cup could be the most environmentally damaging in history. The expanded tournament, co-hosted by the United States, Canada, and Mexico, presents logistical challenges related to team and fan travel across vast distances. Organizers face growing pressure to mitigate the environmental impact through sustainable practices, though the inherent emissions from travel remain a major concern. This situation highlights the conflict between the growth of international sporting events and global sustainability goals.