A French-British team directed by the Laboratoire d’océanographie de Villefranche-sur-Mer (CNRS/Sorbonne Université) has just discovered that a little known process regulates the capacity of oceans to sequester carbon dioxide (CO
2
). It should be noted that photosynthesis performed by phytoplankton on the ocean’s surface transforms atmospheric CO
2
into organic particles, some of which later sink to its depths. This essential mechanism sequesters part of oceanic carbon. However, approximately 70% of this particle flux is reduced between a depth of 100 and 1,000 metres. Earlier studies had shown that small animals consume half of it, but no measurements explained what happened to the other half. Using a fleet of robots deployed in different oceans, scientists revealed that approximately 35% of this flux is fragmented into smaller particles. The results were published on 14 February 2020 in
Science
.
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This part of information is sourced from https://www.eurekalert.org/pub_releases/2020-02/c-opf021320.php
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