Heat Risks and Global Hurdles Shape World Cup 2026

World Cup 2026 in the U.S. and Mexico faces mounting heat and humidity risks as venues and late-summer timing push players and fans toward dangerous conditions, with scientists warning that multiple matches could reach or exceed critical wet-bulb temperatures (26 of 104 at or above 79F; 5 above 82F). Climate change is intensifying heat waves and could affect scheduling into future tournaments (2030 in Europe/M Africa and the next women’s World Cup in Brazil during El Niño). Separately, Iran’s ambassador to Mexico framed the team’s U.S. participation as a peace signal amid visa and travel frictions, while officials and reporters note continued chaos in U.S. visa procedures for fans and officials, and analysts publish cross-country rankings across multiple metrics.