Methods for carbon dioxide removalOcean fertilisation
About the method
Ocean fertilisation involves the targeted outflow of nutrients such as iron or phosphorus into the oceans with a view to promoting the growth of phytoplankton. These microscopic algae absorb CO₂ from the atmosphere during photosynthesis. Some of the sequestered carbon is transported to the deep sea by natural processes and stored there for the long term.
Properties
- Location
- Ocean
- Sequestration mechanism
- Biological
- Carbon storage pool
- Marine sediments
Qualitative comparison
- Duration of storage
- medium to high
- Potential
- medium
- Technology maturity
- low
- Cost efficiency
- medium
- Co-benefits
- Low-medium
