A reconstruction of changes in ocean oxygenation throughout the last glacial cycle shows that respired carbon was removed from the deep Southern Ocean during deglaciation and Antarctic warm events, consistent with a prominent role of reduced iron fertilization and enhanced ocean ventilation, modifying atmospheric carbon dioxide concentrations over the past 80,000 years.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/covariation-deep-southern-ocean-oxygenation-and-atmospheric-co2-through-last-ice-age
[2] http://admin.indiaenvironmentportal.org.in/category/author/samuel-l-jaccard
[3] http://admin.indiaenvironmentportal.org.in/category/author/eric-d-galbraith
[4] http://admin.indiaenvironmentportal.org.in/category/author/alfredo-mart%C3%ADnez-garc%C3%ADa-et-al
[5] http://admin.indiaenvironmentportal.org.in/category/journal/nature
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oceans-and-seas
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-sequestration
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/antarctica
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-capture-and-storage
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ocean-fertilization