Climatic impacts of stratospheric geoengineering with sulfate, black carbon and titania injection

@article{Jones2015ClimaticIO,
  title={Climatic impacts of stratospheric geoengineering with sulfate, black carbon and titania injection},
  author={Anthony C. Jones and J. M. Haywood and Andy Jones},
  journal={Atmospheric Chemistry and Physics},
  year={2015},
  volume={16},
  pages={2843-2862}
}
Abstract. In this paper, we examine the potential climatic effects of geoengineering by sulfate, black carbon and titania injection against a baseline RCP8.5 scenario. We use the HadGEM2-CCS model to simulate scenarios in which the top-of-the-atmosphere radiative imbalance due to rising greenhouse gas concentrations is offset by sufficient aerosol injection throughout the 2020–2100 period. We find that the global-mean temperature is effectively maintained at historical levels for the entirety… 

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References

SHOWING 1-10 OF 84 REFERENCES
The Impact of Geoengineering Aerosols on Stratospheric Temperature and Ozone
Anthropogenic greenhouse gas emissions are warming the global climate at an unprecedented rate. Significant emission reductions will be required soon to avoid a rapid temperature rise. As a potential
Regional climate responses to geoengineering with tropical and Arctic SO2 injections
[1] Anthropogenic stratospheric aerosol production, so as to reduce solar insolation and cool Earth, has been suggested as an emergency response to geoengineer the planet in response to global
Impact of geoengineering schemes on the global hydrological cycle
TLDR
It is shown that insolation reductions sufficient to offset global-scale temperature increases lead to a decrease in global mean precipitation, which implies that an alteration in solar forcing might offset temperature changes or hydrological changes from greenhouse warming, but could not cancel both at once.
Stratospheric ozone response to sulfate geoengineering: Results from the Geoengineering Model Intercomparison Project (GeoMIP)
Geoengineering with stratospheric sulfate aerosols has been proposed as a means of temporarily cooling the planet, alleviating some of the side effects of anthropogenic CO2 emissions. However, one of
An overview of geoengineering of climate using stratospheric sulphate aerosols
  • P. Rasch, S. Tilmes, R. Garcia
  • Environmental Science
    Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2008
TLDR
An overview of geoengineering by stratospheric sulphate aerosols is provided, summarizing the past 30 years of work, highlighting some very recent studies using climate models, and discussing methods used to deliver sulphur species to the stratosphere.
Microphysical simulations of sulfur burdens from stratospheric sulfur geoengineering
Abstract. Recent microphysical studies suggest that geoengineering by continuous stratospheric injection of SO2 gas may be limited by the growth of the aerosols. We study the efficacy of SO2, H2SO4
Albedo Enhancement by Stratospheric Sulfur Injections: A Contribution to Resolve a Policy Dilemma?
Fossil fuel burning releases about 25 Pg of CO2 per year into the atmosphere, which leads to global warming (Prentice et al., 2001). However, it also emits 55 Tg S as SO2 per year (Stern, 2005),
Sensitivity of stratospheric geoengineering with black carbon to aerosol size and altitude of injection
[1] Simulations of stratospheric geoengineering with black carbon (BC) aerosols using a general circulation model with fixed sea surface temperatures show that the climate effects strongly depend on
Arctic cryosphere response in the geoengineering model intercomparison project G3 and G4 scenarios
We analyzed output from the Geoengineering Model Intercomparison Project for the two most “realistic” scenarios, which use the representative concentration pathway of 4.5 Wm−2 by 2100 (RCP4.5) as the
Solar irradiance reduction via climate engineering: Impact of different techniques on the energy balance and the hydrological cycle
Different techniques of solar radiation management (SRM) have been suggested to counteract global warming, among them the injection of sulfur into the stratosphere, mirrors in space, and marine cloud
...
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