The Effects of Iron Fertilization on Carbon Sequestration in the Southern Ocean

An unresolved issue in ocean and climate sciences is whether changes to the surface ocean input of the micronutrient iron can alter the flux of carbon to the deep ocean. During the Southern Ocean Iron Experiment, we measured an increase in the flux of particulate carbon from the surface mixed layer,...

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Bibliographic Details
Published in:Science
Main Authors: Buesseler, Ken O., Andrews, John E., Pike, Steven M., Charette, Matthew A.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2004
Subjects:
Southern Ocean
Online Access:http://dx.doi.org/10.1126/science.1086895
https://www.science.org/doi/pdf/10.1126/science.1086895
Description
Summary:An unresolved issue in ocean and climate sciences is whether changes to the surface ocean input of the micronutrient iron can alter the flux of carbon to the deep ocean. During the Southern Ocean Iron Experiment, we measured an increase in the flux of particulate carbon from the surface mixed layer, as well as changes in particle cycling below the iron-fertilized patch. The flux of carbon was similar in magnitude to that of natural blooms in the Southern Ocean and thus small relative to global carbon budgets and proposed geoengineering plans to sequester atmospheric carbon dioxide in the deep sea.

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