>It's not as if sunlight is a sparse resource (on a global scale). Water is though, especially water that is fit for food production. This process (and others

>It's not as if sunlight is a sparse resource (on a global scale). Water is though, especially water that is fit for food production. This process (and others like it) makes a huge improvement on the amount of water required in comparison to traditional outdoor farming. >The lights give them the ability to control temperature, humidity and irrigation, allowing it to cut its water usage to 1 per cent of that needed by outdoor fields, while also growing lettuces two-and-a-half times faster, the experts claim.