It's all to do with chinampas. These raised fields built on artificial islands sound almost too good to be true. Often fed by a network of canals and dykes, they apparently afford "extremely high" ...

Roland Ebel of the Sustainable Food Systems Program at Montana State University conducted a research project to determine the extent to which an ancient Aztec agricultural technique could benefit 21st ...

At the height of their power, the Aztec Empire supported a population of up to 3 million in the Valley of Mexico, and many of their largest cities had populations exceeding 100,000. This was not easy, ...