Monarch butterflies are seen at El Rosario sanctuary for monarch butterflies in the western state of Michoacan, near Ocampo, Mexico on February 3, 2020. | REUTERS/Alan Ortega TPX IMAGES OF THE DAY/PBS.org
A man sits in a disheveled chair amid ruins in the Salton Sea. | Still from “California’s Salton Sea | H2O: The Molecule That Made Us” / PBS LearningMedia