A greenhouse (10, 50) comprises: a growing section (16, 56)； a climate control system (12, 52) adjacent to the growing section, said climate control system arranged to control the environment within said growing section by flowing ambient air from outside said greenhouse into said growing section and/or by re-circulating air from said growing section back into said growing section, wherein said climate control system comprises one or more vents (24, 64) adapted to draw ambient air into said climate control system, whereby a plurality of tubes (18, 58) are in communication with said one or more vents, wherein said plurality of tubes are arranged at the bottom of said growing section to uniformly distribute air to a greenhouse crop within said growing section.
