An overview of geoengineering of climate using stratospheric sulphate aerosols

@article{Rasch2008AnOO,
  title={An overview of geoengineering of climate using stratospheric sulphate aerosols},
  author={Philip J. Rasch and Simone Tilmes and Richard P. Turco and Alan Robock and Luke D. Oman and Chih-Chieh Chen and Georgiy L. Stenchikov and Rolando R. Garcia},
  journal={Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences},
  year={2008},
  volume={366},
  pages={4007 - 4037}
}
  • P. Rasch, S. Tilmes, R. Garcia
  • Published 13 November 2008
  • Environmental Science
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
We provide an overview of geoengineering by stratospheric sulphate aerosols. The state of understanding about this topic as of early 2008 is reviewed, summarizing the past 30 years of work in the area, highlighting some very recent studies using climate models, and discussing methods used to deliver sulphur species to the stratosphere. The studies reviewed here suggest that sulphate aerosols can counteract the globally averaged temperature increase associated with increasing greenhouse gases… 

Figures from this paper

Impact of geoengineered aerosols on the troposphere and stratosphere

A coupled chemistry climate model, the Whole Atmosphere Community Climate Model was used to perform a transient climate simulation to quantify the impact of geoengineered aerosols on atmospheric

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

Could aerosol emissions be used for regional heat wave mitigation

Abstract. Geoengineering applications by injection of sulfate aerosols into the stratosphere are under consideration as a measure of last resort to counter global warming. Here a potential

The Regional Hydroclimate Response to Stratospheric Sulfate Geoengineering and the Role of Stratospheric Heating

Geoengineering methods could potentially offset aspects of greenhouse gas‐driven climate change. However, before embarking on any such strategy, a comprehensive understanding of its impacts must be

An overview of the Earth system science of solar geoengineering

Solar geoengineering has been proposed as a means to cool the Earth by increasing the reflection of sunlight back to space, for example, by injecting reflective aerosol particles (or their

A Risk-Based Framework for Assessing the Effectiveness of Stratospheric Aerosol Geoengineering

A simple, intuitive risk-based framework is presented for classifying impacts of geoengineering according to whether geoengineering increases or decreases the risk of substantial climate change, with further classification by the level of existing risk from climate change from increasing carbon dioxide concentrations.

Global warming mitigation by sulphur loading in the stratosphere: dependence of required emissions on allowable residual warming rate

An approach to mitigate global warming via sulphur loading in the stratosphere (geoengineering) is studied, employing a large ensemble of numerical experiments with the climate model of intermediate

Stratospheric Aerosols for Solar Radiation Management

SRM in the context of this entry involves placing a large amount of aerosols in the stratosphere to reduce the amount of solar radiation reaching the surface, thereby cooling the surface and

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

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

Weakened tropical circulation and reduced precipitation in response to geoengineering

Geoengineering by injection of reflective aerosols into the stratosphere has been proposed as a way to counteract the warming effect of greenhouse gases by reducing the intensity of solar radiation
...

References

SHOWING 1-10 OF 79 REFERENCES

Exploring the geoengineering of climate using stratospheric sulfate aerosols: The role of particle size

Aerosols produced in the lower stratosphere can brighten the planet and counteract some of the effects of global warming. We explore scenarios in which the amount of precursors and the size of the

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

Stratospheric ozone depletion: A review of concepts and history

Stratospheric ozone depletion through catalytic chemistry involving man‐made chlorofluorocarbons is an area of focus in the study of geophysics and one of the global environmental issues of the

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),

The Sensitivity of Polar Ozone Depletion to Proposed Geoengineering Schemes

An injection of sulfur large enough to compensate for surface warming caused by the doubling of atmospheric CO2 would strongly increase the extent of Arctic ozone depletion during the present century for cold winters and would cause a considerable delay in the expected recovery of the Antarctic ozone hole.

Self-limiting physical and chemical effects in volcanic eruption clouds

We have constructed one-dimensional aerosol microphysical and photochemical models to examine the chemistry of stratospheric volcanic clouds. Estimates of the stratospheric inputs of several key

Transient climate–carbon simulations of planetary geoengineering

It is found that the climate system responds quickly to artificially reduced insolation; hence, there may be little cost to delaying the deployment of geoengineering strategies until such a time as “dangerous” climate change is imminent.

Arctic Oscillation response to the 1991 Mount Pinatubo eruption: Effects of volcanic aerosols and ozone depletion

[1] Observations show that strong equatorial volcanic eruptions have been followed by a pronounced positive phase of the Arctic Oscillation (AO) for one or two Northern Hemisphere winters. It has

Arctic Oscillation response to volcanic eruptions in the IPCC AR4 climate models

[1] Stratospheric sulfate aerosol particles from strong volcanic eruptions produce significant transient cooling of the troposphere and warming of the lower stratosphere. The radiative impact of
...