A Living Sphere: Japan’s Self-Contained Food Ecosystem Points to Urban Agriculture’s Future

A Living Sphere: Japan’s Self-Contained Food Ecosystem Points to Urban Agriculture’s Future

Perched at the Osaka Health Pavilion during Expo 2025, a translucent dome hums with life. Inside, tomatoes ripen above brackish water while pufferfish swim below, their waste feeding the plants that clean their home. This is “Inochi no Izumi,” or “Source of Life,” a 21-foot-high sphere that reimagines how cities might feed themselves. The dome’s…

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