A new study is challenging claims that the 2026 World Cup in the United States, Canada and Mexico will be the most polluting event in sports. The research adds a new layer to the debate over the tournament’s likely carbon footprint and how that impact should be measured.
When the three countries launched their joint bid in 2018, climate policy was part of the pitch. The bid committee said it would strive to deliver a carbon-neutral tournament, and the proposal included a 97-page environmental assessment prepared by consultants.
The latest analysis appears to question the basis for earlier warnings about the scale of the event’s emissions. Instead of accepting the idea that the tournament is set to become sport’s biggest polluter, the study revisits the assumptions behind those claims and how the final footprint is being estimated.
The disagreement highlights a wider issue facing major international sporting events: sustainability promises are closely watched, but the credibility of those pledges depends on how emissions are counted and reported. As the 2026 World Cup approaches, scrutiny is likely to remain focused on whether the hosts can match their early climate commitments with transparent evidence.
