Photo of Milanovac Lake in Croatia’s Plitvice National Park. (© Maurizio Biancarelli/ Wild Wonders of Europe) Earth has a water…
The state of California is suing the federal government over untreated sewage in the Tijuana River. NBC 7's Erika Cervantes…
Photo: A stream in San Cristóbal de las Casas, which residents claim is contaminated with sewage. Potable water is scarce…
Photo: People in Mexico gather to watch as the 2014 pulse flow moves across the dry Colorado River Delta. National…
The Colorado River provides water for seven western states and Mexico. Heavily overallocated and ravaged by years of drought, the…