The Deep Southern Ocean is Key to More Intense Ice Ages

Friday, Mar 8, 2019

Over the last million years, ice ages have intensified and lengthened. According to a new study co-authored by AOS Postdoctoral Research Fellow Alex Haumann, this previously unexplained climate transition coincides with a diminution of the mixing between deep and surface waters in the Southern Ocean. The study, published in Science today, confirms that the Antarctic region plays a crucial role during periods of climate change. Danny Sigman, Princeton's Dusenbury Professor of Geological and Geophysical Sciences, is among the paper's co-authors.

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Link to the study:

http://science.sciencemag.org/content/363/6431/1080

An associated perspective by Laurie Menviel:

http://science.sciencemag.org/content/363/6431/1040