The fast progress of modern man has led to unsustainable limits in public spaces. The public and private value of green areas has fallen, in my country, into it's lowest term. The most dangerous part it's that it's seen mostly as cost due to mitigations or a unnecessary problem to resolve. The consequences of this view are quite obvious and visible; air and water pollution, the rapid decline of native species and low biological diversity currently found in urban environments. The vast majority of cities, because of its development -and Santiago as the clear example-, have left an obviously difficult task alongside to remove or mitigate the damage . The legacy of progress on the environment and the biosphere is not encouraging and the consequences of the destruction of the territory for temporary benefits it's beginign to be more than an isolated trouble. We just need to see the critical point reached in pollution levels in most of this areas; the uncontrolled expansion of cities has become a process that has led to the exacerbation of pre-existing imbalances between the various social sectors manifested in the appearance of different practices and ways of inhabiting the city.