From Ancient Blooms to Future Change: Southern Ocean Algae and Earth’s Climate

Ancient Algae, Modern Lessons Roughly 14,000 years ago, during the end of the last Ice Age, massive blooms of the algae Phaeocystis thrived in the Southern Ocean. These blooms absorbed large amounts of carbon dioxide (CO₂) from the atmosphere, significantly slowing global warming at a time when Earth’s climate was…

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