Juan Carlos Giraldo talks with sustainability expert Vitas Carosella about making the 2026 (USA/Canada/Mexico) and 2034 (Saudi Arabia) World Cups truly green. With 48 teams and sprawling hosts, challenges include massive travel emissions, new stadiums, and extreme heat. Carosella unpacks FIFA's net-zero goals, regional scheduling to cut flights, and bids favoring existing infrastructure. He highlights player-led carbon offsets and fan campaigns as real paths forward. A sharp, hopeful look at turning the world's biggest sport into a climate leader.