Spectator journeys to host cities generated the bulk of greenhouse gas emissions during the FIFA World Cup 2026. New estimates show travel accounted for 80 percent of the tournament's total emissions.
The findings highlight how international movement by fans dominates the environmental footprint of major sporting events.
Organizers and analysts have noted that emissions also arise from infrastructure construction and high levels of consumption at venues. However, travel remains the leading contributor.
Similar patterns appear in other large gatherings such as global music tours, where audience movement drives comparable impacts.