Articles | Volume 11, issue 1
Earth Syst. Dynam., 11, 13–16, 2020
https://doi.org/10.5194/esd-11-13-2020

Special issue: ESD Ideas

Earth Syst. Dynam., 11, 13–16, 2020
https://doi.org/10.5194/esd-11-13-2020

ESD Ideas 17 Jan 2020

ESD Ideas | 17 Jan 2020

ESD Ideas: Why are glaciations slower than deglaciations?

Christine Ramadhin and Chuixiang Yi

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Cited articles

Colleoni, F., Krinner, G., Jakobsson, M., Peyaud, V., and Ritz, C.: Influence of regional parameters on the surface mass balance of the Eurasian ice sheet during the peak Saalian (140 kya), Global Planet. Change, 68, 132–148, 2009. 
Curry, J. A., Schramm, J. E., and Ebert, E.: On the ice albedo climate feedback mechanisms, J. Climate, 8, 240–247, 1995. 
Gildor, H. and Tziperman, E.: Sea ice as the glacial cycles climate switch: role of seasonal and orbital forcing, Paleoceanography 15, 605–615, 2000. 
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Here we explore ancient climate transitions from warm periods to ice ages and from ice ages to warm periods of the last 400 000 years. The changeovers from warm to ice age conditions are slower than those from ice age to warm conditions. We propose the presence of strong negative sea–ice feedbacks may be responsible for slowing the transition from warm to full ice age conditions. By improving understanding of past abrupt changes, we may have improved knowledge of future system behavior.
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