Carbon burial in sediments below seaweed farms matches that of Blue Carbon habitats

Nature Climate Change, Published online: 17 January 2025; doi:10.1038/s41558-024-02238-1

To understand the potential for seaweed as a Blue Carbon strategy, the authors quantify carbon burial under 20 globally distributed seaweed farms. They attribute an average of 1.06 ± 0.74 tCO2e ha−1 yr−1 to seaweed farms, and show increased accumulation of carbon with farm age.