Solar radiation management

• Solar radiation management
  Solar radiation management
  Solar radiation management projects are a type of geoengineering which seek to reflect sunlight and thus reduce global warming. Examples include the creation of stratospheric sulfur aerosols. They do not reduce greenhouse gas concentrations in the atmosphere, and thus do not address problems...
  
  
• Stratospheric sulfur aerosols (geoengineering)
  Stratospheric sulfur aerosols (geoengineering)
  The ability of stratospheric sulfate aerosols to create a global dimming effect has made them a possible candidate for use in geoengineering projects to limit the effect and impact of climate change due to rising levels of greenhouse gases...
  
  
• Space sunshade
• Cloud reflectivity enhancement
  Cloud reflectivity enhancement
  Cloud reflectivity enhancement is also known as 'marine cloud brightening' or 'cloud whitening' on low cloud. An opposite scheme exists to reduce the reflectivity of higher, colder cirrus clouds. It is a geoengineering technique that works by solar radiation management. By modifying the...
  
  
• Stratospheric Particle Injection for Climate Engineering
  Stratospheric Particle Injection for Climate Engineering
  Stratospheric Particle Injection for Climate Engineering is a UK government-funded project that aims to assess the feasibility of injecting particles into the stratosphere from a tethered balloon for the purposes of solar radiation management....
  
  

Greenhouse gas remediation

• Greenhouse gas remediation
  Greenhouse gas remediation
  Greenhouse gas remediation projects are a type of geoengineering and seek to remove greenhouse gases from the atmosphere, and thus tackle the root cause of global warming. These techniques either directly remove greenhouse gases, or alternatively seek to influence natural processes to remove...
  
  
• Biochar
  Biochar
  Biochar or terra preta is charcoal created by pyrolysis of biomass. Biochar is under investigation as an approach to carbon sequestration via bio-energy with carbon capture and storage. Biochar thus has the potential to help mitigate climate change, via carbon sequestration...
  
  
• Bio-energy with carbon capture and storage
  Bio-energy with carbon capture and storage
  Bio-energy with carbon capture and storage is a greenhouse gas mitigation technology which produces negative carbon emissions by combining biomass use with geologic carbon capture and storage....
  
  
• Carbon sequestration
• Iron fertilisation
• Ocean nourishment
  Ocean Nourishment
  Ocean Nourishment is a type of geoengineering based on the purposeful introduction of nutrients to the upper ocean to increase marine food production and to sequester carbon dioxide from the atmosphere. Fertilization can also potentially create sulfur aerosols which reduce the rate of global warming...
  
  
• Enhanced weathering
  Enhanced weathering
  Enhanced weathering refers to chemical approach to geoengineering involving land or ocean based techniques. Examples of land based enhanced weathering techniques are in-situ carbonation of silicates. Ultramafic rocks, for example, have the potential to store 500 years worth of production according...