How do ice ages end? Is it a carefully phased process, with orbital variations of the Earth causing carbon dioxide to rise in the atmosphere, Southern Hemisphere ocean temperatures to rise, then ice sheets to melt and Northern Hemisphere oceans to warm [Imbrie et al., 1989]? Or does something throw a switch, causing a change from “glacial” to “interglacial” mode in a few short years or decades [Broecker and Denton, 1989]? And does the switch jiggle a few times first, giving rise to the Younger Dryas and the older Dansgaard‐Oeschger events?
All Science Journal Classification (ASJC) codes
- Earth and Planetary Sciences(all)