"Talk of dumping iron into the ocean off Chile to boost plankton is a return of a controversial idea that warrants questions, says Olive Heffernan"

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"To geochemist Greg Rau, the future looks like a seaside power plant. More specifically, it looks like a biomass combustion plant that’s actually carbon-negative because the CO2 emissions are dissolved and captured in a mix of seawater and alkaline minerals through a process called chemical weathering. Why does Rau want to see that plant erected, perhaps along the coast near UC Santa Cruz, where he works? Because he believes that energy generation can solve the problems created by energy generation. He believes that this is how you begin to turn back 150 years of carbon dioxide emissions before sea level rise engulfs the landscape and would-be power plant operators have to look for new real estate."

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"Co-author BAS Biological Oceanographer Dr Sophie Fielding says: "This finding is essential for understanding the ocean's capacity for carbon capture. As atmospheric carbon dioxide levels increase, it's essential for us to understand both the physical and biological mechanisms for fertilising the ocean with iron.""

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Blaustein, Richard (2016): United Nations Seeks to Protect High-Seas Biodiversity. In BioScience, biw097. DOI 10.1093/biosci/biw097

Science writer's article on biodiversity and also CE. "Beyond the life it supports, the global ocean system plays a key role in mitigating climate change. The seas have an immense natural capacity to absorb heat and carbon. Some researchers also look to the oceans for potential geoengineering schemes, such as adding iron as a way to sequester carbon."

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