Is indoor farming sustainable? This important question was fielded at GreenTech 2022 in Amsterdam four weeks ago. Dr. Mary Ellis, chairwoman of FarmtechSociety, hosted Annie Wissemeier (InfiteAcres), Tim Bongartz (FLUENCE), Jack Farmer (LetUSgrow), and Carrol Plummer (Vivent) to cut through the maze of thinking around sustainability beyond it being just a catchphrase.