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Ocean fertilization or ocean nourishment is a type of technology for carbon dioxide removal from the ocean based on the purposeful introduction of plant nutrients to the upper ocean to increase marine food production and to remove carbon dioxide from the atmosphere.
Ocean iron fertilization is an example of a geoengineering technique that involves intentional introduction of iron-rich deposits into oceans, and is aimed to enhance biological productivity of organisms in ocean waters in order to increase carbon dioxide (CO 2) uptake from the atmosphere, possibly resulting in mitigating its global warming effects.
A cyclonic eddy centered on 48 deg S, 16 deg E was selected for fertilization. The experiment began on India's Republic Day (26 January 2009). 10 tonnes (9.8 long tons; 11 short tons) of ferrous sulfate dissolved in seawater was spread over an area of 300 square kilometres (120 sq mi), and the patch created was monitored for 38 days to investigate the effects of iron addition on marine ...
Due to the scale of the ocean and the fast response times of heterotrophic communities to increases in primary production, it is difficult to determine whether limiting-nutrient fertilization results in an increase in carbon export. [70] However, the majority of the community does not believe this is a reasonable or viable approach. [71]
The Haida Salmon Restoration Corporation (HSRC) is a Vancouver-based company formerly run by Russ George and funded by the Old Massett band of Haida Gwaii.The company conducted a small scale ocean fertilization experiment in 2012.
Since past iron fertilization experiments have resulted in large phytoplankton blooms, some have suggested that large-scale ocean fertilization experiments should be conducted to draw down inorganic anthropogenic carbon dioxide in the form of particulate organic carbon. Fertilization would stimulate biological productivity, leading to a ...
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Their modelling results predicted that the total ocean area covered by C. diadema and E. huxleyi would decline by 8% and 16%, respectively, under the examined climate scenario. They predicted changes in the range and distribution of these two phytoplankton species under these future ocean conditions, if realized, might result in reduced ...