Ocean iron fertilisation

Ocean iron fertilisation

Sequestering CO2 by stimulating phytoplankton growth


Iron is an indispensable nutrient for oceanic primary production. However, iron is scarce over immense areas of the ocean where, nonetheless, other nutrients are relatively abundant. This results in a limitation of primary production and thus of the ability of the ocean to absorb carbon from the atmosphere.


Adding iron to iron-limited regions of the ocean stimulates phytoplankton growth, accelerating CO2 sequestration from the atmosphere.