Stratospheric aerosol particles and solar radiation management

Francis D Pope, P Braesicke, R.G Grainger, M Kalberer, I M Watson, P.J Davidson, R.A Cox

Research output: Contribution to journalArticle (Academic Journal)

50 Citations (Scopus)

Abstract

The deliberate injection of particles into the stratosphere has been suggested as a possible geoengineering scheme to mitigate the global warming aspect of climate change. Injected particles scatter solar radiation back to space and thus reduce the radiative balance of Earth. Previous studies investigating this scheme have focused primarily on sulphuric acid particles to mimic volcanic injections of stratospheric aerosol. However, the composition and size of volcanic sulphuric acid particles are far from optimal for scattering solar radiation. We show that aerosols with other compositions, such as minerals, could be used to dramatically increase the amount of light scatter achieved on a per mass basis, thereby reducing the particle mass required for injection. The chemical consequences of injecting such particles into the stratosphere are discussed with regard to the fate of the ozone layer. Research questions are identified with which to assess the feasibility of such geoengineering schemes.

Original languageEnglish
Pages (from-to)713-719
Number of pages7
JournalNature Climate Change
Volume2
Issue number10
DOIs
Publication statusPublished - Oct 2012

Keywords

  • MOUNT-PINATUBO ERUPTION
  • IN-SITU MEASUREMENTS
  • OZONE DEPLETION
  • EVOLUTION
  • SIMULATIONS
  • CONVERSION
  • SULFATE
  • CLONO2
  • ALBEDO
  • ISAMS

Fingerprint Dive into the research topics of 'Stratospheric aerosol particles and solar radiation management'. Together they form a unique fingerprint.

  • Cite this

    Pope, F. D., Braesicke, P., Grainger, R. G., Kalberer, M., Watson, I. M., Davidson, P. J., & Cox, R. A. (2012). Stratospheric aerosol particles and solar radiation management. Nature Climate Change, 2(10), 713-719. https://doi.org/10.1038/NCLIMATE1528