This book explores the multifaceted impact of sports mega-events, from the World Cup to the Olympics, Formula One, and America’s Cup. Often celebrated for uniting nations, showcasing culture, and driving economic growth, these events also face increasing scrutiny for their ecological and social consequences. Global Sports Go Green—Or Do They? critically examines claims of environmental responsibility, addressing their effects on ecosystems, communities, and athletes, and interrogates the gap between greenwashing rhetoric, material realities, and grassroots resistance. The book will be of particular interest to students and scholars of the sociology of sport, mega-events, sociology of culture and sustainability.