Scientists in South Korea are developing a farming system that could allow food to be grown in any climate, a project that becomes increasingly pressing as the world's population reaches new heights. <br /><br />The scientists practice vertical farming: the mass cultivation of plant and animal life in skyscrapers. <br /><br />This cultivation system could help reduce overall CO2 levels in the atmosphere by recycling emissions from nearby industries. <br /><br />Artificially controlling the variables of the environment such as temperatures, humidity and CO2 emissions could also provide optimal environments for plants in a variety of settings. <br /><br />Once the Koreans make the system more sustainable and affordable, the plan is to export the idea to harsher climates like the Middle East.<br /><br />Al Jazeera's Wayne Hay reports from Gyeonggi Province.
