https://images.dwell.com/photos-6063391372700811264/6133499801057976320-large/on-two-of-the-eight-houses-sloping-roofs-are-more-than-2000-square-feet-of-green-roofs-the-goal-was-to-reduce-the-urban-heat-island-effect-and-increase-the-efficiency-of-the-building-as-well-as-reference-the-farmlands-and-protected-space-to-the-south.jpg