And while it"s unlikely we"ll ever grow all our grains in vertical farms, it could still prove to be useful in some situations. In 2020, agricultural scientists from several US universities published an article arguing vertical farming might one day play a role in hedging against future unexpected supply chain disruptions. As the ongoing war in Ukraine has highlighted the world"s dependence on cereals from eastern Europe and sparked a search for alternative sources, it may be a proposal worth considering.