With the aim to foster a sense of connection to the environment in order to stimulate a proactive behavior, evoking a sense of responsibility, and highlighting the importance of sustainability, the NOU, organized two open lectures, at Wilson High school, and elite private institution. The activity has been organized in two different session, the first one, involving only Kindergarten pupils, and the second one, with students of the 5th and 6th grade. The latter were familiar with the ozone layer subject as they were enrolled at the Ecological School Club.