(30 Dec 2025) ASSOCIATED PRESS San Nicolás de los Ranchos, México - 5 December 2025 1. Various of volcanologist, Marco Calò, climbing slope of Mexico's Popocatepetl volcano 2. Calò and colleague looking at volcano 3. Scientists climbing volcano's slope 4. Mid of volcano 5. SOUNDBITE (Spanish) Marco Calò, profesor de vulcanología, UNAM: ++STARTS ON SHOT 3++ "What’s exciting about Popocatepetl, really, is its sheer majesty, how immense it is. You don’t climb to more than 4,000 meters every day."