: Sunlight passes through transparent walls and roofs to warm the soil and plants inside [10]. These objects then release heat as infrared radiation. While the glass is transparent to incoming light, it is less so to outgoing heat, and it primarily works by blocking convection —preventing the warmed air from escaping and mixing with cooler outside air [10, 35].
), a frozen state unsuitable for most current life forms [5, 23, 25]. How It Works greenhouse
: A cost-effective, flexible plastic often used in commercial "hoop houses" [15]. : Sunlight passes through transparent walls and roofs