Ice Sheet Collapse: A Radically Compressed Timeline

He points to a major shift in how scientists understand the timeline of ice sheet collapse at the end of the last glacial period. What once seemed like a slow process spread across forty or fifty thousand years has been compressed dramatically by new evidence. The data now suggests the deglaciation happened far more rapidly than previously thought, with ice sheets potentially collapsing within a much tighter window. This isn't just a minor adjustment to the timeline. It represents a fundamental change in understanding how quickly massive climate transitions can occur. The evidence keeps pointing toward catastrophic collapse rather than gradual retreat, and that has profound implications for how we interpret both ancient climate events and the forces that drove them.