Paris is showing the way to a much more sustainable future with iinnovative, practical solutions to growing food in the city, managing its water resources sustainably for the public good, and developing more localized energy generation.

The French capital hosts Nature Urbaine, Europe’s largest urban rooftop farm, on the roof of Pavilion 6 of Paris Expo Porte de Versailles. It has been producing more than 10 tons of fruit and vegetables each season since spring 2020, and last year, was recognized as the world’s first urban farm to net offset carbon. Its computer-controlled hydroponic and aeroponic systems use 80% less water and produce 62% fewer CO2 emissions than a conventional farm for the same yield. 

Its produce helps supply an on-site restaurant and is sold to residents and surrounding businesses such as hotels. The rooftop also hosts tours and events, helping make the project financially viable.