From gcn.com
An abandoned mine shaft beneath the town of Mansfield, England, is an unlikely place to shape the future of cities. But here, researchers from the nearby University of Nottingham are planning to launch a “deep farm” that could produce ten times as much food as farms above ground. Deep farms are an example of what the latest wave of smart cities look like: putting people first by focusing on solving urban problems and improving existing infrastructure, rather than opening shiny new buildings.