Greenpeace and the international artist TVboy affixed symbolic street-art works in Rome’s iconic locations in order to denounce the health impacts of NO2 pollution coming from diesel engines.

Gregory Peck and Audrey Hepburn, Marcello Mastroianni and Anita Ekberg, Federico Fellini, Pierpaolo Pasolini, Sofia Loren, Francesco Totti and Pope Francis appeared around Rome wearing an air pollution mask.