Volcanoes, Not Comets, Caused Ice Age Chill
New research reveals that a mysterious platinum spike in Greenland's ice, once thought to be from a catastrophic cosmic impact 12,800 years ago, actually originated from prolonged volcanic eruptions in Iceland. This discovery fundamentally re-evaluates the initial trigger for the Younger Dryas cooling period, as the platinum signal appeared decades *after* the cold snap began, disproving an extraterrestrial cause.