LatestGreenpeace reports that all 17 water sites tested near Mérida, Mexico, showed fecal contamination, with pig-specific testing detecting pig waste; municipal sewage and septic leaks may also be contributing. Because groundwater is the Yucatán’s main freshwater source, the group is calling for a halt to new industrial pig farms and expansions, while the study’s findings do not establish the source of all contamination.Oct 21, 2026