Organic cilantro seedlings sprout from growing towers made out of PVC pipes at Citiponics' urban farm...
Organic cilantro seedlings sprout from growing towers that are primarily made out of polyvinyl chloride (PVC) pipes at Citiponics' urban farm on the rooftop of a multi-storey carpark in a public housing estate in western Singapore April 17, 2018. Picture taken April 17, 2018. REUTERS/Loriene Perera