The present invention discloses a method for the air conditioning of closed environments (314), particularly for vertical farms, comprising the steps of:—；conditioning the air by means of an air treatment unit (301)；—；distributing and taking the conditioned air into the closed environment (314) through a plurality of channels (303, 305, 306, 307, 308, 309) connected to said air treatment unit (301)；—；generating a flow of conditioned air exiting, through a plurality of openings (316), from a first vertical wall (317) and taken in, through a plurality of openings (316), from the opposite vertical wall (315) of the closed environment (314)；—；alternatively inverting the delivery direction of the conditioned air along a substantially parallel direction with respect to the floor of the closed environment (314) so as to hit the inside of the closed environment (314) alternatively from one direction and subsequently from the opposite direction of the two vertical walls (318a, 318b). The invention also discloses a system for implementing the described method.
