High-Tech Farming: The Light Fantastic

Indoor farming may be taking root. A grey warehouse in an industrial park in Indiana is an unlikely place to find the future of market gardening. But it is, nevertheless, home to a pristine, climate-controlled room full of eerily perfect plants. They grow 22 hours a day, 365 days a year in 25-foot towers, untouched by pests and bathed in an alien pink light. Critical to this $2.5m techno-Eden, run by a firm called Green Sense Farms, are the thousands of blue and red light-emitting diodes (LEDs) ...