Microparticle Concentration Variations Linked with Climatic Change: Evidence from Polar Ice Cores

The microparticle concentrations in three deep ice cores reveal a substantial increase in the concentration of insoluble particles in the global atmosphere during the latter part of the last major glaciation. The ratio of the average particle concentration in the late glacial strata to that in the H...

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Bibliographic Details
Published in:Science
Main Authors: Thompson, L. G., Mosley-Thompson, E.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1981
Subjects:
Multidisciplinary
Byrd
Byrd Station
Greenland
Antarc*
Antarctica
Online Access:http://dx.doi.org/10.1126/science.212.4496.812
https://www.science.org/doi/pdf/10.1126/science.212.4496.812
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Summary:The microparticle concentrations in three deep ice cores reveal a substantial increase in the concentration of insoluble particles in the global atmosphere during the latter part of the last major glaciation. The ratio of the average particle concentration in the late glacial strata to that in the Holocene strata is 6/1 for the core from Dome C, Antarctica, 3/1 for the core from Byrd Station, Antarctica, and 12/1 for the core from Camp Century, Greenland. Whether this temporal correlation between increased atmospheric particle load and the lower surface temperatures is directly causal is unknown; however, the variations in these two parameters must be satisfactorily resolved in any successful hypothesis that addresses the causes of climatic change.

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