As the second most recent ice age was ending and its glaciers began to retreat, the Earth experienced a large, abrupt climate change that shifted the thermal equator southward by about 4 degrees, according to a new study that for the first time tracks that shift in millennial detail, showing how the Northern Hemisphere cooled and the Southern Hemisphere warmed over the span of a few hundred years. The change would have affected the monsoons, today relied on to feed more than half the world’s population, and could have helped tip the climate system over the threshold for deglaciation, said lead author Allison Jacobel.
January 22, 2016
Lamont Researchers Discover Currents Connecting Pacific and Indian Oceans Are Colder and Deeper Than ExpectedOctober 24, 2003
Scientists at Columbia University’s Lamont-Doherty Earth Observatory have found that currents connecting the Indian and Pacific Oceans are colder and deeper than originally believed. This discovery may one day help climate modelers predict the intensity of the Asian monsoon or El Niño with greater accuracy and with more lead-time than is currently possible.
|Abrupt Climate Change and the Monsoons During the Last Glacial Period||Interpretation of the Asian Speleothems|