Vertical farming

**Types of Vertical Farming:**
– Coined by Gilbert Ellis Bailey in 1915.
– Modern usage involves growing plants in layers within structures like multistory skyscrapers, used warehouses, or shipping containers.
– Mixed-use skyscrapers proposed by Ken Yeang focus on personal or community use, climate control, and consumption.
– Despommier’s skyscrapers aim for environmental benefits, with less energy and pollution compared to traditional farming.
– Stackable shipping containers and deep farming in abandoned mine shafts are alternative methods used for vertical farming.

**Technological Aspects of Vertical Farming:**
– Lighting can be natural or via energy-efficient LEDs, with commercial LEDs being about 28% efficient in 2018.
– Various technological precedents exist, such as greenhouse and hydroponic technology, Tower Hydroponic Units, and Ken Yeang’s Bioclimatic Skyscraper.
– Dickson Despommier popularized vertical farming in 1999, proposing advanced farming techniques like hydroponics.
– Notable developments include The Plant in Chicago’s integration of anaerobic digesters and the use of renewable electricity by Jones Food Company in England.

**Advantages and Benefits of Vertical Farming:**
– Vertical farming can potentially produce 100-180 million tonnes of food annually, with significant energy savings and environmental benefits.
– It reduces the need for additional farmland, increases crop production by a factor of 4-6, and provides fresh produce year-round.
– Vertical farming helps mitigate the impacts of weather disruptions on traditional outdoor farming, offers conservation benefits, and addresses resource scarcity issues.
– Advantages include efficient space utilization, reduced water usage, minimized pesticide needs, and potential for urban food production.
– The industry’s global expansion includes cities like Seattle, Toronto, and Dubai, with technological innovations like the Leafy Green Machine and shipping-container farming.

**Economic and Environmental Considerations:**
– Vertical farms require substantial initial funding, and their profitability has been questioned, with significant energy costs for lighting and climate control.
– Some vertical farms have claimed cost parity with traditional farming, while others operate solely on renewable electricity.
– The environmental impact of vertical farming includes reduced greenhouse gas emissions, minimized water pollution, decreased deforestation, enhanced biodiversity conservation, and mitigation of soil erosion.
– Economic aspects involve job creation in urban areas, boosting local economies, improving food security, attracting investment in agricultural technology, and enhancing food access in food deserts.

**Future Trends and Challenges in Vertical Farming:**
– Challenges include high initial investment costs, energy-intensive operations, technological limitations, limited crop variety, and scaling difficulties.
– Future trends involve the integration of automation and AI, expanding vertical farming in cities, developing sustainable practices, collaborating with traditional agriculture, and adopting vertical farming in diverse climates.
– Vertical farming is recognized academically and by industries for its potential role in the future of farming, addressing global biodiversity and ecosystem services.