A première in Portugal: a closed water and nutrient cycle; the production of strawberries and lettuce, pumpkins and tomatoes (and much more) and freshwater fish all year round. One supports the other, the fish support the growing of vegetables with their natural fertiliser, and the vegetables support the fish with treated, reusable water. The water circulates from one tank to the next and is pumped back again, all day long, 24 hours a day, by solar-powered pumps. This is known as aquaponics, and this form of organic, urban agriculture is advocated and financially supported by the EU. On a drawing …
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