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Mexico Martha Guzmán Santis (right) and María Santis López (left) cook handmade corn tortillas using a comal, or griddle, and a wood fire in their community of Cruz Pilar, in the Tenejapa municipality of Chiapas, Mexico. Open fires, which can expose the user to strong heat and smoke inhalation, are used often in the indigenous communities of Chiapas.

Adriana Alcázar González, GPJ Mexico