Articles | Volume 18, issue 2
Research article
 | Highlight paper
11 Feb 2022
Research article | Highlight paper |  | 11 Feb 2022

Abrupt climate changes and the astronomical theory: are they related?

Denis-Didier Rousseau, Witold Bagniewski, and Michael Ghil

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Manuscript not accepted for further review
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Cited articles

Adhémar, J.: Révolutions de la mer, déluges périodiques, Carilian-Goeury et V. Dalmont, Paris, 1842. 
Agassiz, L.: Glaciers, Moraines, and Erratic Blocks, Edinb. New Philos. J., 24, 364–383, 1838. 
Agassiz, L.: Glaciers and the evidence of their having once existed in Scotland, Ireland and England, Proc. Geol. Soc. Lond., vol. III, Part II, 327–332, 1842. 
Alley, R. B.: Palaeoclimatology – Icing the north Atlantic, Nature, 392, 335–337,, 1998. 
Short summary
The study of abrupt climate changes is a relatively new field of research that addresses paleoclimate variations that occur in intervals of tens to hundreds of years. Such timescales are much shorter than the tens to hundreds of thousands of years that the astronomical theory of climate addresses. We revisit several high-resolution proxy records of the past 3.2 Myr and show that the abrupt climate changes are nevertheless affected by the orbitally induced insolation changes.