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epa.gov
official
https://www.epa.gov/geoengineering/about-geoengineering
For example, geoengineering includes the removal of carbon dioxide from the atmosphere (also called Carbon Dioxide Removal – CDR) through methods such as direct air capture and storage, ocean iron fertilization, or ocean alkalinity enhancement. These activities are referred to as **Solar Geoengineering** or **Solar Radiation Modification (SRM).** Most proposed solar radiation modification techniques involve adding material to the atmosphere to increase the amount of incoming sunlight reflected back to space. Marine solar radiation management (mSRM) techniques, on the other hand, involve adding materials to ocean waters, sea ice, or the lower atmosphere to increase the amount of solar radiation reflected at or near the ocean's surface to limit surface warming or sea ice melt. * *Marine Cloud Brightening (MCB)* – adding particles, such as sea spray, to the lower atmosphere (near the surface) to increase the reflectivity of clouds over the ocean. Another subset of geoengineering activities intends to cool the Earth by intentionally modifying the concentration of certain gases in the atmosphere, including carbon dioxide.
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en.wikipedia.org
article
https://en.wikipedia.org/wiki/Geoengineering
The term commonly encompasses two broad categories: large-scale carbon dioxide removal (CDR) and solar radiation modification (SRM). CDR involves techniques to
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climate.earthathome.org
article
https://climate.earthathome.org/wp-content/uploads/2024/04/Chapter-8-Geoengin…
2 These studies include the Royal Society report mentioned in (1) and two reports from the US Na-tional Research Council: Climate Intervention: Carbon Dioxide Removal and Reliable Sequestration (2015), and Climate Intervention: Reflecting Sunlight to Cool Earth (2015), The National Acadamies Press, Washington, D.C. 182 8 Geoengineering Counteracting approached a tipping point—a threshold beyond which the Earth would enter a vastly different climate state—then emergency measures would likely garner more serious attention. 1.1 Types of Climate Intervention Geoengineering methods fall under two classes: 1) Carbon dioxide removal (CDR), which removes CO2 from the atmosphere, and 2) solar radiation management (SRM), which reflects sunlight back into space. Box 8.1: Exercise to examine the mass scales involved in one type of enhanced chemical weathering6 185 Geoengineering 8 CO2 Removal 2.2 Ocean Fertilization Another of Nature’s ways of removing CO2 from the atmosphere is through photosynthesis by phytoplankton at the surface of the ocean (Figure 8.2).
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academic.oup.com
article
https://academic.oup.com/nsr/article/11/4/nwad271/7330193
Chai: Generally speaking, geoengineering can be divided into two categories: solar radiation management (SRM) and carbon dioxide removal (CDR). CDR consists of
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carbonbrief.org
article
https://www.carbonbrief.org/explainer-six-ideas-to-limit-global-warming-with-…
However, research shows that using solar geoengineering could indirectly lower the amount of CO2 in the atmosphere by stemming permafrost melt, reducing energy-sector emissions and causing changes to the carbon-cycle feedback. Aerosol injection could have an edge on other proposed forms of solar geoengineering because it would not require a large technological leap to become a reality, Jones says:. These brighter clouds would reflect away more sunlight, says Prof Douglas MacMartin, an engineering researcher from Cornell University, who contributed to the US House of Representatives’ hearing on geoengineering. Earlier this month, MacMartin, Keith and Prof Katharine Ricke, a climate scientist from the University of California, San Diego, published a research paper exploring how solar geoengineering – via releasing aerosols into the stratosphere – could be used as part of an “overall strategy” for limiting global warming to 1.5C, which is the aspirational target of the Paris Agreement. However, the researchers point out that using solar geoengineering to hold global warming to 1.5C would not have the same environmental effect as reaching the target using mitigation.
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geoengineeringmonitor.org
article
https://www.geoengineeringmonitor.org/technologies
tech-illustration-weather-modification-alpha. Would you like to learn about the different Geoengineering Technologies in more depth? Visit the Geoengineering Technologies page. tech-illustration-bioenergy-carbon-capture-storage-alpha. tech-illustration-weather-modification-alpha. ¿Le gustaría conocer las Tecnologías de Geoingeniería en profundidad? Visite la página sobre Tecnologías de Geoingeniería. tech-illustration-bioenergy-carbon-capture-storage-alpha. ## Ocean Alkalinity Enhancement. ## Weather Modification. ## Marine Cloud Brightening. ## Enhanced Photosynthesis. ## Enhanced Weathering. ## Ocean Fertilisation. Bioenergy with Carbon Capture and Storage. ## Bioenergy with Carbon Capture and Storage. Carbon Capture Use and Storage. ## Carbon Capture Use and Storage. ## Direct Air Capture. ## Carbon Capture and Storage. ## Cirrus Cloud Thinning. Visit the Geoengineering Technologies page. ## Ocean Alkalinity Enhancement. ## Weather Modification. ## Marine Cloud Brightening. ## Enhanced Photosynthesis. ## Enhanced Weathering. Bioenergy with Carbon Capture and Storage. ## Bioenergy with Carbon Capture and Storage. Carbon Capture Use and Storage. ## Carbon Capture Use and Storage. ## Direct Air Capture. ## Carbon Capture and Storage. ## Cirrus Cloud Thinning. Visite la página sobre Tecnologías de Geoingeniería.
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geoengineering.global
article
https://geoengineering.global/
In our civilization’s effort to slow down and stop Climate Change and reverse Global Warming, geoengineering should not be considered the only solution, but rather an important part of a comprehensive, integrated, international program that mitigates the effects of Global Warming, restores our biosphere and addresses the root causes of Climate Change (i.e., the use of fossil fuels and carbon dioxide emissions, human population growth, consumptive lifestyles, unsustainable practices, degradation of natural ecosystems, etc.). An IPCC Special Report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty [Masson-Delmotte, V., P. An IPCC Special Report on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty [Masson-Delmotte, V., P.
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weforum.org
article
https://www.weforum.org/stories/2025/11/5-prominent-geoengineering-ideas-and-…
Geoengineering seeks to slow or mask the impacts of warming at the poles. Geoengineering seeks to counteract the effects of global warming.