We took some pictures of this greenhouse operation at a school here in Arizona. The large glass building is cooled with two large water coolers on one end of the building and two large fans at the other end of the building drawing the wet air across the greenhouse
Some of the plants growing in front of the pads that water is pumped over to allow the air to get 'wet' as it passes through
Some tomatoes growing in a soil-less (hydroponics) system. A solution of water and nutrients is pumped past their roots
Some houseplants in the greenhouse
Large houseplants next to tiny cactus
Small cactus in the greenhouse
Outside the greenhouse there is not too much growing