The concept of eating locally has taken on new meaning in the city of Basel, where Zurich University of Applied Science has developed an aquaponic farm on the rooftop of a building, with the aim of studying how successful and replicable the system could be. Aquaponic farms combine fish and vegetable production in a no-soil hydroponic system. There’s little to no waste, and minimal requirement of fertilisers or pesticides, and it can produce crops throughout the year.

Aquaponics can help secure food security by enabling food production within an already used space, and because ...


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