As a child going to school in Timika, Indonesia, the nearest major town to Puncak Jaya, Alion Belau could see, on a clear day, that there were glaciers atop the 4,884-meter (16,024-foot) mountain. Some Indigenous peoples, including Belau’s tribe, the Moni, call them “the eternity glaciers” (or, in Indonesian, Salju Abadi). At 4,884 meters (16,024 feet) tall, Puncak Jaya, in the Indonesian part of the island of New Guinea, is the tallest mountain…