Carbon burial below seaweed farms
Seaweed farming has emerged as a potential Blue Carbon strategy, yet empirical estimates of carbon burial from such farms remain lacking in the literature.
In a study, recently published in NATURE with co-authors from ECOS: Dorte Krause-Jensen, Teis Boderskov and Annette Bruhn, carbon burial was analysed in 20 seaweed farms distributed globally, ranging from 2 to 300 years in operation and from 1 to 15,000 ha in size. The study confirmed that seaweed farming in depositional environments buries carbon in the underlying sediments at rates towards the low range of that of Blue Carbon habitats, but increasing with farm age.
The paper was one of four NATURE highlights of the week of publication.
You find the full paper here: https://www.nature.com/articles/s41558-024-02238-1