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    earthrise - Aquaponics

    Repost
    Al Jazeera English

    by Al Jazeera English

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    As people become richer and move to cities, global demand for meat and fish keeps growing. Russel Beard explores a highly-efficient closed-loop system known as 'aquaponics', where fish and vegetables grow symbiotically, meaning that produce and protein can be cultivated sustainably and profitably in cities.