This orange flower cloaks Mexico during Day of the Dead. Climate change is putting it at risk

Cempasuchil in full bloom in the Xochimilco borough of Mexico City, Friday, Oct. 17, 2025, ahead of the Day of the Dead celebrations. (AP Photo/Claudia Rosel) Farmer Jesus Cuaxospa works on his farm where he grows cempasúchil flowers in San Luis Tlaxialtemalco on the outskirts of Mexico City, Oct. 17, 2025, in preparation for Day of the Dead celebrations. (AP Photo/Claudia Rosel) Flor Jimenez waters her crop of cempasuchil flowers in preparation for Day of the Dead celebrations in Xochimilco where marigolds are grown on the outskirts of Mexico City, Thursday, Oct. 16, 2025. (AP Photo/Claudia Rosel) Flor Jimenez packages cempasuchil flowers on her farm as she grows the marigolds in preparation for Day of the Dead celebrations in Xochimilco on the outskirts of Mexico City, Thursday, Oct. 16, 2025. (AP Photo/Claudia Rosel) Catrina sculptures stand in a field of cempasuchil flowers in San Luis Tlaxialtemalco on the outskirts of Mexico City, Friday, Oct. 17, 2025. (AP Photo/Claudia ...