With the 2015 Paris Agreement (COP 21, 2015) the challenge to climate change seemed to have reached a turning - point. However, as Patrizia Gabellini has point-ed out, politics and urban policies have struggled to achieve results able to give the right answers to the seriousness of the environmental challenges. The paper il-lustrates an experiment that intends to turn great strategies into micro, short-term green actions. The basic aim is to improve the quality of urban life starting from the neighborhood scale. The path undertaken, with a pro-active joint participation of institutions, associations and individual inhabitants, focuses on strengthening the presence of nature in the city, in any form. The initiative, developed in the San Lorenzo neighborhood in Rome, is testing new design patterns, such as green Oases and beams, small-scale actions in the logic of a local green network. The experience can be considered a manifesto for a sustainable regeneration, in small steps and responsive to the demand for quality in the everyday life space.
Keywords: Livability, tactical urbanism, green network, temporary uses, pro-active participation