Deep carbon export from a Southern Ocean iron-fertilized diatom bloom (original) (raw)

AI-generated Abstract

Fertilization of the ocean with iron has led to diatom blooms that significantly reduce carbon dioxide in the surface layer. A five-week study in the Antarctic Circumpolar Current tracked sinking particles, revealing a robust diatom bloom followed by mass mortality and notable carbon sequestration to depths below 1,000 meters, potentially reaching the sea floor. This suggests that iron-fertilized diatom blooms can sequester carbon for centuries, highlighting their role in climate change mitigation.

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