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Marine biological controls on atmospheric CO2 and climateIt is argued that the ocean is losing N gas faster than N is being returned to the ocean, and that replenishment of the N supply in the ocean usually occurs during ice ages. Available N from river and estruarine transport and from rainfall after formation by lightning are shown to be at a rate too low to compensate for the 10,000 yr oceanic lifetime of N. Ice sheets advance and transfer moraine N to the ocean, lower the sea levels, erode the ocean beds, promote greater biological productivity, and reduce CO2. Ice core samples have indicated a variability in the atmospheric N content that could be attributed to the ice age scenario.
Document ID
19830047182
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mcelroy, M. B.
(Harvard University Cambridge, MA, United States)
Date Acquired
August 11, 2013
Publication Date
March 24, 1983
Publication Information
Publication: Nature
Volume: 302
Subject Category
Geosciences (General)
Accession Number
83A28400
Funding Number(s)
CONTRACT_GRANT: NAG1-55
CONTRACT_GRANT: NSF DEB-79-20282
Distribution Limits
Public
Copyright
Other

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