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This was traditionally built using glass, but with the advent of cheap, robust Polycarbonate glazing most designs use twin- or triple-wall polycarbonate greenhouse sheeting. Typically the glazing is designed to pass visible light, but block IR to reduce losses, and block UV to protect building materials.
The terms greenhouse, glasshouse, and hothouse are often used interchangeably to refer to buildings used for cultivating plants. The specific term used depends on the material and heating system used in the building. Nowadays, greenhouses are more commonly constructed with a variety of materials, such as wood and polyethylene plastic. [2]
Twin-wall polycarbonate is able to flex in the demanding conditions of four-season greenhouses and allows for consistent temperature management because of the insulative properties. [12] Twinwall Polycarbonate sheeting is primarily installed with glazing bars, which secure the sheets down to the frame, whether timber, metal or other framing ...
The greenhouse industry is the second largest component of the CEA industry but another quickly growing segment is the vertical farming industry. Controlled Environment Agriculture has the ability to produce crops all year round, with the possibility of increased yield by adjusting the amount of carbon and nutrients the plants receive.
When plastic enters the biosphere it releases toxins, fragments into microplastics and emits greenhouse gases that interfere with ecological cycles. [9] When plastic is burned or incinerated, toxic gases like dioxins, furans, and polychlorinated biphenyls are released into the atmosphere. [15]
Around a trillion dollars worth of food is thrown away each year. Food waste takes up around 30% of agricultural land around the world and generates between 8% to 10% of global greenhouse gas ...
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