Is an American ‘heat dome’ threatening to ruin the 2026 Fifa World Cup? Just days after records were smashed in the UK and across Europe, 120 million people in the US now face extreme heat warnings during the World Cup over blistering temperatures. Experts have warned that the heatwave could impact athletes and hundreds of thousands of fans. #Heatwave #Heatdome #Climate #WorldCup #C4News