They’re smaller than dust, but crucial for Earth’s climate

Coccolithophores, tiny planktonic architects of Earth’s climate, capture carbon, produce oxygen, and leave behind geological records that chronicle our planet’s history. European scientists are uniting to honor them with International Coccolithophore Day on October 10. Their global collaboration highlights groundbreaking research into how these microscopic organisms link ocean chemistry, climate regulation, and carbon storage. The initiative aims to raise awareness that even the smallest ocean dwellers have planetary impact.