Dumping Iron Into Oceans Could Sink Carbon, Slow Global Warming - iScienceTimes.com

This type of geoengineering - large-scale manipulation of the climate - has been controversial, but this is the first experiment to show that the technique works. At the end of the 2004 summer season, scientists fertilized an ocean eddy in the Southern Ocean off Antarctica with 7 tons of dissolved iron, prompting the growth of small plant-like organisms called phytoplankton.The study was the first convincing evidence that carbon, absorbed by algae, can sink to the ocean bed. If this organic matter settles into the deep ocean, it may not reach the surface for centuries or millennia, depending on ocean circulation, lead researcher Victor Smetacek said, according to CBS News.<br />http://www.isciencetimes.com/articles/3469/20120720/dumping-iron-oceans-sink-carbon-slow-global.htm