Dust in the wind drove iron fertilization during ice age

 In the image, a plume of dust has been emitted from southern South America and is being transported eastward over the Subantarctic Atlantic Ocean. (Image courtesy of William Putnam and Arlindo da Silva, NASA/Goddard Space Flight Center)

In the image, a plume of dust has been emitted from southern South America and is being transported eastward over the Subantarctic Atlantic Ocean. (Image courtesy of William Putnam and Arlindo da Silva, NASA/Goddard Space Flight Center)

Catherine Zandonella, Office of the Dean for Research

Researchers from Princeton University and the Swiss Federal Institute of Techonology in Zurich have confirmed that during the last ice age iron fertilization caused plankton to thrive in a region of the Southern Ocean.