Southern Ocean Best for Iron Fertilization, Study Shows
GS3Economy · S&T · Environment · Security· Climate change & international agreements· Prelims·
Why in news
A study published in Nature identifies the Southern Ocean as the optimal site for iron fertilization to mitigate climate change due to its balance of carbon sequestration and low ecological risk.
Background
Researchers simulated 60 years of ocean iron fertilization across ten major ocean regions. The study found that while the equatorial Pacific is efficient for carbon removal, it carries high ecological costs, making the Southern Ocean a superior candidate.
Facts for Prelims
- S&TIron fertilization is a geoengineering technique aimed at stimulating phytoplankton growth to sequester atmospheric CO2.
- PlaceThe Southern Ocean is a critical carbon sink and a key area for marine biodiversity.
- FactThe study simulated 60 years of fertilization across ten major ocean regions.
For Mains
Q. Discuss the potential of marine geoengineering, such as iron fertilization, as a tool for climate change mitigation while addressing the associated ecological risks.
Dimensions to cover in your answer
- carbon sequestration efficiency
- ecological disruption risks
- long-term environmental impacts
- international regulatory framework
Keywords: geoengineering · carbon sequestration · ecological disruption · climate mitigation · phytoplankton
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