Reduction of pollution, mitigation of heat waves, social objectives.

That metropolitan areas are increasingly becoming a growing population aggregate, in numbers and needs, is evident in many countries where the increase in internal migration to large cities does not stop.

The reasons that drive people to move are mainly economic, as the city is an environment where opportunities to find work are certainly higher than in rural areas.

The massive increase in population has led in recent decades to an “urgent” and immoderate overbuilding , both from an architectural, environmental and social point of view, creating entire neighborhoods without identity and without a soul, through economic construction and with a marked urban essentiality.

This way of creating “dormitory ” neighborhoods has created social and generational disintegration and a lack of integration between the built and nature. Children born in these contexts struggle to recognize an environmental alternative to buildings, paved roads and areas other than small neighborhood parks, if they exist.

Furthermore, the increasing pollution caused by vehicular traffic, heating of homes and the consequences of summer heat waves create unhealthy and stressful living conditions for the population.

Many city administrations have become convinced that green is the key to alleviate some problems linked to pollution and, through the increase of city forestation , the possibility of creating living conditions and a more human social life.

Milan has made this its goal, with the aim of planting three million trees by 2030 and, through this operation, redevelop some areas to increase social aggregation. The planting also has the purpose of inserting in the environmental balance of the city a mitigating element of pollutants and of the persistent heat, during the summer, on the buildings less responsible for defending users from this growing phenomenon.

We are mainly talking about school buildings, hospitals and centers for the elderly , who will receive the first interventions aimed at making the city environment more livable.

The climate problem in cities tends to exacerbate social, economic and health inequalities, especially in the suburbs, where the quality of construction from the point of view of thermo-acoustic insulation creates situations of obvious discomfort. Furthermore , trees help in combating fine dust, heating buildings and saving on the use of air conditioners .

Milan has also fielded “green” initiatives through the construction of buildings, in which green is an integral part of their structure and through the organization of events open to the entire population to live in new areas destined for a new relationship between the city population and nature.