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James Croll: a scientist ahead of his time

Published online by Cambridge University Press:  08 July 2011

V.A. Bol'shakov ,
A.P. Kapitsa  and
W.G. Rees
V.A. Bol'shakov
Affiliation:
M.V. Lomonosov Moscow State University, Moscow 119991, Russia
A.P. Kapitsa
Affiliation:
M.V. Lomonosov Moscow State University, Moscow 119991, Russia
W.G. Rees
Affiliation:
Scott Polar Research Institute, University of Cambridge, Cambridge CB2 1ER (wgr2@cam.ac.uk)
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Abstract

James Croll (1821–1890) was a Scottish scientist who made major, although still largely unrecognised, contributions to the theory of the effects of variations in the Earth's orbit on the global climate. He was the first to identify the importance of positive feedbacks in the climate system, especially the ice-albedo feedback, and he placed the astrochronological method on a sound footing. Croll's theory was the first to predict multiple ice ages. However, it was unable to place the end of the most recent glaciation more recently than 80,000 years ago, and as evidence accumulated throughout the 19th century for a much more recent date than this Croll's theory fell into neglect. We argue that this was particularly unfortunate since several of his key ideas were forgotten, and that this has delayed the development of the orbital theory of paleoclimate.

Type
Notes
Information
Polar Record , Volume 48 , Issue 2 , April 2012 , pp. 201 - 205
Copyright
Copyright © Cambridge University Press 2011

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