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https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8799699

View of tomatoes inside one of the solar greenhouses at the University of Arizona Environmental Research Laboratory at Tucson.

High intensity agriculture in a high temperature, high humidity environment is being studied. University units in the Middle East are producing 200 pounds of vegetables per acre per day, 04/1974. Photographer: Norton, Boyd. Original public domain image from Flickr

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View of tomatoes inside one of the solar greenhouses at the University of Arizona Environmental Research Laboratory at Tucson.

More