Green areas and biodiversitat

The cities advance establishing an equilibrium among the urban activity and the with respect to the nature and to|in the biological diversity that is own for them. Barcelona promotes the preservation of the biodiversitat through programs of conservation of the flora and of the fauna, and of the habitats where they live. 
The green areas constitute places in|on the free air for the leisure and the promotion of the communal life. It is necessary to renaturalize the city, to broaden the urban green and to retrieve the traditional uses of the landscape of the urban periphery in order to achieve a serene environment, with agricultural zones, meadows and patches of forest.