Coccolithophore (IMAGE) University of Colorado at Boulder Caption Microscopic coccolithophores like this species, Emiliania huxleyi, among the ocean's most common phytoplankton, appear to be declining in the Southern Ocean, a possible result of a changing climate. Credit Image courtesy Alison Taylor, University of North Carolina Wilmington Microscopy Facility/Wikimedia Commons Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.