Viruses may help phytoplankton make clouds — by tearing the algae apart
Emiliania huxleyi rapidly shed their covering of tiny calcium carbonate plates when infected

OCEAN SPHERE Phytoplankton called Emiliania huxleyi (one shown) are covered in tiny calcium carbonate platelets. When infected with a virus, the algae lose the platelets quickly.
The Natural History Museum, London/Science Source
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