Ocean Nourishment
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High Quality Content by WIKIPEDIA articles! Ocean Nourishment is a type of geoengineering based on the purposeful introduction of nutrients to the upper ocean (e.g. phosphate) to increase the marine food chain and to sequester carbon dioxide from the atmosphere. Fertilization also creates stratospheric sulfur aerosols and can therefore be used for Solar radiation management. The marine food chain is based on photosynthesis by marine phytoplankton which combine carbon with inorganic nutrients to produce organic matter. The production of organic matter is limited in general by the availability…mehr

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High Quality Content by WIKIPEDIA articles! Ocean Nourishment is a type of geoengineering based on the purposeful introduction of nutrients to the upper ocean (e.g. phosphate) to increase the marine food chain and to sequester carbon dioxide from the atmosphere. Fertilization also creates stratospheric sulfur aerosols and can therefore be used for Solar radiation management. The marine food chain is based on photosynthesis by marine phytoplankton which combine carbon with inorganic nutrients to produce organic matter. The production of organic matter is limited in general by the availability of nutrients, most commonly nitrogen or iron. Numerous experiments have been carried out demonstrating how iron fertilization can increase phytoplankton productivity in the high latitude waters. It is also effective in some lower latitudes. Nitogen appears to be the limiting nutrient in the rest of the ocean and can be supplied by from a number of sources including fixation by cyanobacteria. The efficacy of fixation varies dramatically, with iron fixing more carbon atoms per iron atom than other substances, which is a significant reason for the focus on iron in recent research.