As the population across the globe is growing at a rapid pace, the demand for food products is also increasing at a swift pace. It is estimated that by 2050, the global population is predicted to grow by 2 billion. Furthermore, because of urbanization and industrialization, arable lands are decreasing day by day. Because of such factors, the need for enhancing productivity on existing agricultural fields and finding alternative ways to produce crop is pressing. One of the ways to increasing yield to fulfill the demand for people is making use of vertical farming. 
The practice of growing crop in vertically stacked layers is referred to as vertical farming. The technique is basically utilized for producing food in challenging environments, such as where arable lands are rare or their unavailability. Vertical farming aids deserts, mountainside towns, and cities grow various types of vegetables and fruits by making use of skyscraper-like design and precision agriculture techniques. Attributed to such advantages, the global vertical farming market is expected to progress at a significant pace in the near future. Hardware and software are the two types of components that are utilized for vertical farming, between which, the demand for different hardware components was significant in the past. 
Hardware components utilized in vertical farming are hydroponic components (Including water filters, pumps and irrigation, and meters and solutions), lighting (including grow light ballasts, grow lights, and grow light reflectors), sensors (including crop sensors, temperature sensors, PH sensors, CO2 sensors, and nutrient sensors), and climate control (including air purification/control and ventilation fans). Among all these the demand for lighting components was the highest in the past. Shipping container-based and building-based are the two types of structures that are utilized for vertical farming, between which, the demand for building-based structure is predicted to increase considerably in the coming years. 
This farming type offers nearly 8 times more farming area as compared to single level farming land and further aids minimize the farming cost. In terms of growth mechanism, aquaponics, hydroponics, and aeroponics are the three techniques that are used for vertical farming. The demand for aquaponics is expected to grow considerably in the near future, since it combines fish farming ad hydroponics for creating an efficient closed loop system. A number of crops can be produced using vertical farming techniques, including tomato, lettuce, pepper, spinach, cucumber, and broccoli. 
Geographically, North America made the most use of vertical farming techniques in the past, which can be attributed to the growing popularity of commercial urban farming in the region and early adoption of advanced technologies. Other than this, the adoption of vertical farming is also projected to increase in Asia-Pacific (APAC), thereby making the region the fastest-growing vertical farming market in the years to come. This is because of the fact that the fertile agricultural land in the region is decreasing, which is creating opportunities for urban farming. In addition, the high population in India and China is also driving the demand for different agricultural techniques in APAC.  
In conclusion, the demand for vertical farming is surging due to the increasing population and reducing arable land across the globe.