From forgotten air raid shelter to thriving underground farm. By @wef #SDGs #Renewableenergy #Food #innovation #Tech4Good #Recycled #Sustainability Cc: @chboursin @FmFrancoise @Nicochan33 @KanezaDiane @LouisSerge @drsharwood @AkwyZ @Stevewal63 @baski_LA @jblefevre60 @sallyeaves https://t.co/G6Zhg2WgJI