The Younger Dryas Impact Hypothesis: A Cosmic Threat to a Cozy Consensus?
Roughly 12,800 years ago, Earth hit a climatic brick wall. The Younger Dryas—a 1,200-year deep freeze that derailed the post-Ice Age warmup—has long been wrapped in a neat little bow: melting glaciers flooded the Atlantic, stalled ocean currents, and turned the thermostat down. It’s a story the scientific establishment has clung to like a security…