GEA@275TM is a new type of bio-carbon capture technology and as such a geoengineering technology. The technology will store carbon dioxide geologically on the deep ocean floor.
GEA@275TM falls in the category of carbon geoengineering, which aim to remove carbon dioxide from the atmosphere in order to mitigate global warming caused by the greenhouse effect. The other geoengineering category is solar radiation management (SRM) or solar geoengineering.
GEA@275TM bio-carbon capture must not be confused with another type of bio-carbon capture and storage (Bio-CCS) where the CO2 produced from bioenergy is captured and stored. GEA@275TM aims to store emissions directly in the biomass. This Bio-CCS has limitations because biomass is currently a limited resource.
Furthermore, GEA@275TM must not be confused with traditional ocean fertilization. Also this Bio-CCS method has limitations because the growth of phytoplankton triggers grazing of higher organisms and the CO2 is returned through system respiration back to the atmosphere.
Geoenginering can potentially neutralize the negatives of anthropogenic global warming. Such technologies can contribute to the carbon-negative economy and can buy us some time until our society is carbon-neutral. However, it is essential that the technologies are researched and safely tested before implementation.
Following are links to relevant articles on Geoengineering:
§ Climate engineering (Articles)
§ IPCC (2007) 11.2.2 Ocean fertilization and other geo-engineering options
§ Geoengineering Could Reduce Critical Global Rainfall
§ Gas Injection (CCS) Probably Triggered Small Earthquakes
§ IPCC 2013: Climate change. The physical science basis
§ New Scientist (2013) IPCC digested: Just leave the fossil fuels underground
§ Nature 2013; Outlook for Earth
§ Two or three degrees more – does it really matter?
§ Climate change in facts and figures
§ Carbon Capture And Storage: Global Warming Panacea, Or Fossil Fuel Pipe Dream?
2 thoughts on “Our Approach to Geoengineering”
Would it not be appropriate to make a reference to the key legal framework and international agreement pertinent to this issue as well?
Stephan, thank you for your comment, I will look into it and make some additional references. GEA@275 is not really ocean fertilization because it does not intend to stimulate primary productivity, rather aggregation/clustering. However, if it is classified as ocean fertilization, “an ocean fertilization activity may be considered for a permit if it is assessed as constituting legitimate scientific research taking into account any specific placement assessment framework.” http://www.imo.org/MediaCentre/PressBriefings/Pages/45-marine-geoengieneering.aspx