
'The UK imports more than half its salad leaves from Spain and Morocco; an estimated 60% is thrown away': Can vertical ...
Inside the lofty walls of a building beside the River Severn, small miracles happen daily. Stacked on Meccano-style shelving, 15 layers high, are trays of miniature salad leaves and herbs bathed in the disco glow of multicoloured LED lights. Seeds started …