Living in future cities: from overbuilding to ecological transition

In contemporary cities the levels of livability and urban quality are less and less optimal. There are various causes: climate and demographic changes, reduction of natural resources, health risks, excessive consumption of soil, increased pollution, impoverishment of populations, lack of employment, transformation of urban space, etc. Evolving cities, increasingly vulnerable, characterized by insecurity, uncertainty and unpredictability, the result of mistakes made in the past. In this context, in planning future scenarios it is necessary to re-examine the governance, the strategies of urban expansion and transformation through new approaches capable of declining innovative concepts such as participation, transparency, creativity and resilience. Thanks to the application of new organizational and management models, with at the base of the indicators, it is possible to build more livable and sustainable cities capable of coping with the changes taking place. Several international and national environmental sustainability programs aim at the "green revolution" so that, through investments and reforms, the ecological and digital transition of cities is favored, as indicated in the 2030 Agenda or in the Assisi 2020 Manifesto for an economy on a human scale against the climate crisis. In this study, through a multidisciplinary approach, we will analyze the gap between some cities in the north and south of the Country, with particular reference to the Sicily region