Barcelona, Atlanta, Sydney, Athens, Beijing and London: hosting cities for the Olympic Summer Games in the last 20 years. The largest sporting event in the world is still growing (from 285 athletes in 1896 to 11.028 in Beijing 2008) with a significant impact on the hosting countries. Governments are navigating between economic growth on the one hand and a minimal environmental impact on the other hand. Bearing this in mind, is it still possible to organize mega-events such as the Olympics in a sustainable way?