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Geography

The Geography of Rooftop Farming in Dense Megacities

Quick fact

In Tokyo, where land is famously scarce, rooftop farms have been legal since 2001 and now occupy over 23 acres of the city's skyline, some of which are used to grow rice, vegetables, and even fruit—proving that even the most crowded megacities can find space for agriculture.

Why this is interesting

In cities where every square meter of ground is priced like gold, some farmers are looking up—literally. Why are rooftops becoming the new agricultural frontier?