Daniel Sigman, Princeton University (IMAGE)

Princeton University

Daniel Sigman, Princeton University

Caption

Danny Sigman, the Dusenbury Professor of Geological and Geophysical Sciences at Princeton University, helped lead an international team of researchers who identified Southern Ocean upwelling as the key to the mysterious warmth of the Holocene, the 11,000-year interglacial period when agriculture and human civilization flourished.

Credit

Laura Pedrick

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