Tuesday, December 7, 2021
Home Climate411 How ancient dust from the sea floor helps to explain climate history

How ancient dust from the sea floor helps to explain climate history

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During the last Ice Age about 20,000 years ago, iron-containing dust acted as a fertilizer for marine phytoplankton in the South Pacific, promoting CO2 sequestration and thus the glacial cooling of the Earth. But where did the dust come from? Researchers led by Dr. Torben Struve, geoscientist at the University of Oldenburg, Germany, have investigated this open question of climate history, which is also relevant with respect to current climate change.

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