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CO (sub 2) ; Earth's climate driver

Wallace S. Broecker
CO (sub 2) ; Earth's climate driver
Geochemical Perspectives (October 2018) 7 (2): 7


As we struggle to cope with the ongoing buildup of CO (sub 2) produced by burning fossil fuels, can we acquire guidance from the geologic record? Although our ability to reconstruct past atmospheric CO (sub 2) content reliably is currently confined to the last 800 thousand years, we do have compelling evidence that this green-house gas played a key role throughout the Earth's history. It certainly compensated for the young Sun's lower luminosity. There is no question that it bailed us out of two snowball episodes or that it led to a brief 5 degrees C warming at the onset of the Eocene. Less certain is that diminishing atmospheric CO (sub 2) content was responsible for the global cooling that began 50 million years ago when the Indian subcontinent collided with Asia. Finally, it colluded with changing seasonality, ocean circulation re-organisation and iron fertilisation to generate the 100 thousand year glacial cycles that dominated the last half-million years.

ISSN: 2223-7755
EISSN: 2224-2759
Serial Title: Geochemical Perspectives
Serial Volume: 7
Serial Issue: 2
Title: CO (sub 2) ; Earth's climate driver
Author(s): Broecker, Wallace S.
Affiliation: Lamont-Doherty Earth Observatory, Palisades, NY, United States
Pages: 117-196
Published: 201810
Text Language: English
Publisher: European Association of Geochemistry, Paris, International
Accession Number: 2019-003927
Categories: StratigraphyGeneral geochemistry
Document Type: Serial
Bibliographic Level: Monographic
Annotation: Individual chapters are not cited separately
Illustration Description: illus.
Country of Publication: International
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute.
Update Code: 201902
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