In this June 27, 2017 photo, a green layer of sludge covers a canal in Xochimilco, in Mexico City. A late July report by the Universidad Autonoma Metropolitana (UAM), in collaboration with local NGO Controla tu Gobierno, indicates that most of the water being fed into Xochimilco’s canals comes from a water treatment plant known as Cerro de la Estrella, whose output contains “a high level of fecal coliform that indicate sewage.” (AP Photo/Marco Ugarte)
Featured Photo Galleries
