Sure, there are discussions of the algae providing new types of food to deep-water animals that are now seeing what appears to be abnormal growth, but the algae growth from what seems to stem from the "large amount of particulate iron runoff" may help to "absorb C02." CO2 is one of the major greenhouse gases that is making a contribution to global warming.

Not that we should stop taking measures to "reduce our carbon footprint," but it seems as though Mother Nature is "on it" as well. She sees the large efforts made by many individuals, like yourself, who care about our planet, and is paying us back in kind, or so I feel.