In Mexico City, a 700-year-old Aztec farming technique is giving a sustainable edge to modern agriculture. It was early on a Sunday morning, and I was in the Floating Gardens of Xochimilco, 28km south ...
Add Yahoo as a preferred source to see more of our stories on Google. MEXICO CITY (Reuters) - In Mexico City, residents are working to clean up the capital's "floating gardens" of Xochimilco, one of ...