Physical science research needed to evaluate the viability and risks of marine cloud brightening

Author:

Feingold Graham1ORCID,Ghate Virendra P.2ORCID,Russell Lynn M.3ORCID,Blossey Peter4ORCID,Cantrell Will5ORCID,Christensen Matthew W.6ORCID,Diamond Michael S.7ORCID,Gettelman Andrew6ORCID,Glassmeier Franziska8ORCID,Gryspeerdt Edward9ORCID,Haywood James10ORCID,Hoffmann Fabian11ORCID,Kaul Colleen M.6ORCID,Lebsock Matthew12,McComiskey Allison C.13ORCID,McCoy Daniel T.14ORCID,Ming Yi15ORCID,Mülmenstädt Johannes6ORCID,Possner Anna16ORCID,Prabhakaran Prasanth117ORCID,Quinn Patricia K.18,Schmidt K. Sebastian19ORCID,Shaw Raymond A.5ORCID,Singer Clare E.20ORCID,Sorooshian Armin21ORCID,Toll Velle22ORCID,Wan Jessica S.3ORCID,Wood Robert4ORCID,Yang Fan13ORCID,Zhang Jianhao117ORCID,Zheng Xue23ORCID

Affiliation:

1. NOAA Chemical Sciences Laboratory, Boulder, CO, USA.

2. Argonne National Laboratory, Lemont, IL, USA.

3. Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA.

4. University of Washington, Seattle, WA, USA.

5. Michigan Technological University, Houghton, MI, USA.

6. Pacific Northwest National Laboratory, Richland, WA, USA.

7. Florida State University, Tallahassee, FL, USA.

8. Delft University of Technology, Delft, Netherlands.

9. Imperial College London, London, United Kingdom.

10. University of Exeter, Exeter, United Kingdom.

11. Ludwig Maximilian University of Munich, Munich, Germany.

12. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.

13. National Center for Atmospheric Research, Boulder, CO, USA.

14. University of Wyoming, Laramie, WY, USA.

15. Boston College, Chestnut Hill, MA, USA.

16. Goethe University, Frankfurt, Germany.

17. CIRES, University of Colorado, Boulder, CO, USA.

18. NOAA Pacific Marine Environmental Laboratory, Seattle, WA, USA.

19. University of Colorado, Boulder, CO, USA.

20. California Institute of Technology, Pasadena, CA, USA.

21. University of Arizona, Tucson, AZ, USA.

22. University of Tartu, Tartu, Estonia.

23. Lawrence Livermore National Laboratory, Livermore, CA, USA.

Abstract

Marine cloud brightening (MCB) is the deliberate injection of aerosol particles into shallow marine clouds to increase their reflection of solar radiation and reduce the amount of energy absorbed by the climate system. From the physical science perspective, the consensus of a broad international group of scientists is that the viability of MCB will ultimately depend on whether observations and models can robustly assess the scale-up of local-to-global brightening in today’s climate and identify strategies that will ensure an equitable geographical distribution of the benefits and risks associated with projected regional changes in temperature and precipitation. To address the physical science knowledge gaps required to assess the societal implications of MCB, we propose a substantial and targeted program of research—field and laboratory experiments, monitoring, and numerical modeling across a range of scales.

Publisher

American Association for the Advancement of Science (AAAS)

Reference130 articles.

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