Karmactive Team
Oceans' overturning circulations tend to weaken; scientists estimate this might result in slower carbon absorption by the ocean.
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Massachusetts Institute of Technology research reveals this slowdown might result in higher carbon levels than previously expected.
This study is based on 2020 research on ocean nutrients and marine organisms, specifically focusing on iron and its influence on phytoplankton growth.
Weaker ocean circulation increases carbon emissions due to a self-perpetuating cycle involving ligands, which are byproducts of phytoplankton.
Slower ocean circulation results in less iron reaching the surface, which in turn reduces phytoplankton growth and the production of ligands.
Without ligands, iron remains insoluble and untapped by phytoplankton, decreasing their ability to absorb CO2.
Some climate models predict a 30% slowdown in ocean circulation due to melting ice caps around the Antarctic region.
Lauderdale emphasized the need to cut emissions now rather than relying on current circulation patterns.
Reevaluating existing climate models and strategies is crucial to effectively mitigate climate change at the earliest opportunity.