Role of marine biology in glacial-interglacial CO2 cycles
It has been hypothesized that changes in the marine biological pump caused a major portion of the glacial reduction of atmospheric carbon dioxide by 80 to 100 parts per million through increased iron fertilization of marine plankton, increased ocean nutrient content or utilization, or shifts in domi...
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American Association for the Advancement of Science
2005
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ftunivreading:oai:centaur.reading.ac.uk:35936 2024-06-23T07:56:55+00:00 Role of marine biology in glacial-interglacial CO2 cycles Kohfield, K. E. Le Quere, C. Harrison, S. P. Anderson, R. F. 2005 https://centaur.reading.ac.uk/35936/ unknown American Association for the Advancement of Science Kohfield, K. E., Le Quere, C., Harrison, S. P. <https://centaur.reading.ac.uk/view/creators/90004853.html> and Anderson, R. F. (2005) Role of marine biology in glacial-interglacial CO2 cycles. Science, 308 (5718). pp. 74-78. ISSN 0036-8075 doi: https://doi.org/10.1126/science.1105375 <https://doi.org/10.1126/science.1105375> Article PeerReviewed 2005 ftunivreading https://doi.org/10.1126/science.1105375 2024-06-11T15:01:09Z It has been hypothesized that changes in the marine biological pump caused a major portion of the glacial reduction of atmospheric carbon dioxide by 80 to 100 parts per million through increased iron fertilization of marine plankton, increased ocean nutrient content or utilization, or shifts in dominant plankton types. We analyze sedimentary records of marine productivity at the peak and the middle of the last glacial cycle and show that neither changes in nutrient utilization in the Southern Ocean nor shifts in plankton dominance explain the CO2 drawdown. Iron fertilization and associated mechanisms can be responsible for no more than half the observed drawdown. Article in Journal/Newspaper Southern Ocean CentAUR: Central Archive at the University of Reading Southern Ocean Science 308 5718 74 78 |
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CentAUR: Central Archive at the University of Reading |
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ftunivreading |
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description |
It has been hypothesized that changes in the marine biological pump caused a major portion of the glacial reduction of atmospheric carbon dioxide by 80 to 100 parts per million through increased iron fertilization of marine plankton, increased ocean nutrient content or utilization, or shifts in dominant plankton types. We analyze sedimentary records of marine productivity at the peak and the middle of the last glacial cycle and show that neither changes in nutrient utilization in the Southern Ocean nor shifts in plankton dominance explain the CO2 drawdown. Iron fertilization and associated mechanisms can be responsible for no more than half the observed drawdown. |
format |
Article in Journal/Newspaper |
author |
Kohfield, K. E. Le Quere, C. Harrison, S. P. Anderson, R. F. |
spellingShingle |
Kohfield, K. E. Le Quere, C. Harrison, S. P. Anderson, R. F. Role of marine biology in glacial-interglacial CO2 cycles |
author_facet |
Kohfield, K. E. Le Quere, C. Harrison, S. P. Anderson, R. F. |
author_sort |
Kohfield, K. E. |
title |
Role of marine biology in glacial-interglacial CO2 cycles |
title_short |
Role of marine biology in glacial-interglacial CO2 cycles |
title_full |
Role of marine biology in glacial-interglacial CO2 cycles |
title_fullStr |
Role of marine biology in glacial-interglacial CO2 cycles |
title_full_unstemmed |
Role of marine biology in glacial-interglacial CO2 cycles |
title_sort |
role of marine biology in glacial-interglacial co2 cycles |
publisher |
American Association for the Advancement of Science |
publishDate |
2005 |
url |
https://centaur.reading.ac.uk/35936/ |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Kohfield, K. E., Le Quere, C., Harrison, S. P. <https://centaur.reading.ac.uk/view/creators/90004853.html> and Anderson, R. F. (2005) Role of marine biology in glacial-interglacial CO2 cycles. Science, 308 (5718). pp. 74-78. ISSN 0036-8075 doi: https://doi.org/10.1126/science.1105375 <https://doi.org/10.1126/science.1105375> |
op_doi |
https://doi.org/10.1126/science.1105375 |
container_title |
Science |
container_volume |
308 |
container_issue |
5718 |
container_start_page |
74 |
op_container_end_page |
78 |
_version_ |
1802650310254002176 |