An environment-controlled multi span structured greenhouse comprising a roof,foursides, a release blower equipped with a heating module in relatively coldweathergeographical locations, and equipped with a cooling module in relatively hotweathergeographical locations, a capture blower, a release blower, a releasemanifold, and a capturemanifold for low cost of supplementary heating and cooling of the greenhouseair, obviatingburning fossil fuels thereby reducing global warming, wherein the externalsurfaces of theroof and the external surface of at least one side of the greenhouse comprisea light diffusingfilm on predetermined areas and locations thereof together with a thermalshading filmaffixed to the surface areas not comprising the light diffusing film, andwherein thegreenhouse further comprises a mechanized module for adjusting the height ofartificial lightsource and a module for melting snow.
