OLMO by Silvio Soldini The short film is about Olmo, eighty years old, who looks out of the window of a building in the suburban area of a city. His eight-year-old grandson Giulio is reading him an article from the newspaper about melting glaciers, the greenhouse effect, methane, and CO2... «What is C-O-2? » asks the child. « Do you remember the carbon dioxide we studied? » says Grandpa. «The one the trees breathe? » asks Giulio. The day after, they’re leaving for a short tour instead of going to school, searching for an old tree. A segment of Interdependence 2019 produced by ART for The World, eleven filmmakers raising awareness on Environment and Climate Change.