Albedo Enhancement by Stratospheric Sulfur Injections: A Contribution to Resolve a Policy Dilemma?

@article{Crutzen2006AlbedoEB,
  title={Albedo Enhancement by Stratospheric Sulfur Injections: A Contribution to Resolve a Policy Dilemma?},
  author={P. Crutzen},
  journal={Climatic Change},
  year={2006},
  volume={77},
  pages={211-220}
}
  • P. Crutzen
  • Published 2006
  • Environmental Science
  • Climatic Change
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), about half of which is converted to sub-micrometer size sulfate particles, the remainder being dry deposited. Recent research has shown that the warming of earth by the increasing concentrations of CO2 and other greenhouse gases is partially countered by some backscattering to space of solar radiation… Expand

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References

SHOWING 1-10 OF 128 REFERENCES
Climate engineering a review of aerosol approaches to changing the global energy balance
As global greenhouse warming continues to intensify, it is likely that demands to employ technologies of climate engineering will become increasingly insistent. This paper addresses the possibilityExpand
Effect on global warming of wind-dependent aerosol generation at the ocean surface
CONSIDERABLE effort is being devoted1,2 to elucidating the influence of clouds on climate, and in particular to assessing the influence on global warming of modifications to cloud cover orExpand
Exploring the geoengineering of climate using stratospheric sulfate aerosols: The role of particle size
[1] 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 ofExpand
Global warming and ice ages: I. prospects for physics based modulation of global change
It has been suggested that large-scale climate changes, mostly due to atmospheric injection of greenhouse gases connected with fossil-fired energy production, should be forestalled byExpand
An overview of geoengineering of climate using stratospheric sulphate aerosols
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. Expand
The Sensitivity of Polar Ozone Depletion to Proposed Geoengineering Schemes
TLDR
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. Expand
Factors limiting the reduction of atmospheric CO2 by iron fertilization
A limit on the reduction in atmospheric CO, partial pressure (PC03 in the next century resulting from purposeful Fe fertilization of the Antarctic Ocean is estimated with an advection-diffusion modelExpand
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 globalExpand
Stratospheric Ion and Aerosol Chemistry and Possible Links with Cirrus Cloud Microphysics—A Critical Assessment
Abstract It has been postulated that variations in galactic cosmic rays could affect production of stratospheric aerosols which, after transport to the upper troposphere, could affect latent heatExpand
Radiative Forcing of Climate Change
Our current understanding of mechanisms that are, or may be, acting to cause climate change over the past century is briefly reviewed, with an emphasis on those due to human activity. The paperExpand
...
1
2
3
4
5
...