Yu et al. (2026): Climate benefit and ecological cost trade-offs for ocean iron fertilization

Jun Yu, J. Keith Moore, Francois W. Primeau, Anthony F. Michaels, Amy G. Nuno, Kristen M. Krumhardt, Michael N. Levy, Keith Lindsay, Hui Wang, James T. Randerson and Adam C. Martiny, IN: Nature, https://doi.org/10.1038/s41586-026-10795-y

Ocean iron fertilization (OIF) is being discussed as a potential carbon dioxide removal (CDR) strategy. Yet the trade-offs between climate benefits and ecological costs remain poorly understood. Here the authors use a process-rich ocean biogeochemical model with validated representations of marine biodiversity and biogeochemistry to quantify fertilization potential and ecosystem impact across ten ocean biomes over 60 years.

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