Pulses of light followed by extended dark periods might help make indoor agricultural production more sustainable.
Indoor plant factories have high energy costs since LEDs replace the sunlight outdoor plants get for free. Scientists found a way to dial back how much light is needed by breaking it into tiny bursts.
Vertical farms have the potential to feed many on the African continent.
Intelligent Growth Solutions
Vertical farms grow more food but use much more energy, so let's consider other kinds of urban agriculture.
Garden roofs (like these in Chengdu, in China’s Sichuan province) need maintenance and community involvement.
Dense, high buildings limit the space available for urban greenery. But imaginative projects that involve the community can ensure nature and the city go hand in hand.
LED growing lights, delivering sunlight whatever the weather.
The challenges of growing enough food to feed the world have grown more severe in the 21st century. We need to feed more people with limited agricultural land and resources. We need to make better use…