Science, Space and Technology News 2024
New research highlights the crucial role of ocean floor topography in oceanic carbon sequestration, explaining up to 50% of its variations over the last 80 million years and impacting climate change strategies and planetary studies. Graphic depicting satellite captured, bathymetric data of the western Atlantic Ocean basin and its ocean floor features.
The carbon cycle, which involves the transfer of carbon among the atmosphere, oceans, and continents, plays a crucial role in controlling Earth’s climate. Various factors contribute to this cycle: volcanic eruptions and human activities release carbon dioxide into the atmosphere, while forests and oceans act as sinks, absorbing this CO2. Ideally, this system balances the emissions and absorption of CO2 to sustain a stable climate.
“Typically, carbon cycle models over Earth’s history consider seafloor bathymetry as either a fixed or a secondary factor,” said Tushar Mittal, the paper’s co-author and a professor of geosciences at Pennsylvania State University., reconstructed bathymetry over the last 80 million years and plugged the data into a computer model that measures marine carbon sequestration.
This new understanding that the shape and depth of ocean floors is perhaps the greatest influencer of carbon sequestration can also aid the search for habitable planets in our universe.
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