Is this a joke or the idea is that the iron will be like a fertilizer to algae that will sequester more carbon and die and sink to the bottom?
(Is it posible to use raw mineral ore? The production of steel/iron use a lot of carbon.)
(Is it posible to use raw mineral ore? The production of steel/iron use a lot of carbon.)
Try to avoid onliners, it's very easy to misinterpret them. (Bonus points for a link to Wikipedia or somewhere with more details.)