María Alejandra Aldama Pérez, left, Evangelina Maya Ruíz, center, Claribel Pérez Saldaño, front-right, and Laura Santiago Molina, back-right, stand on a pedestrian bridge in Ribera Cahuare in Chiapas, Mexico’s southernmost state. The women are members of Salvemos al Cañón del Sumidero (in English, “Let’s Save the Sumidero Canyon”), which they say has been damaged by explosions at the Cales y Morteros del Grijalva limestone factory, shown in background.

Adriana Alcázar González, GPJ Mexico