scholarly journals The Fingerprints of Stratospheric Aerosol Injection in E3SM.

2021 ◽  
Author(s):  
Benjamin Wagman ◽  
Laura Swiler ◽  
Kamaljit Chowdhary ◽  
Benjamin Hillman
Keyword(s):  
Stratospheric Aerosol ◽  
Stratospheric Aerosol Injection

scholarly journals Updated and outdated reservations about research into stratospheric aerosol injection

2021 ◽  
Vol 164 (3-4) ◽  
Author(s):  
Wake Smith ◽  
Claire Henly
Keyword(s):  
Recent Literature ◽  
Early Stage ◽  
Stratospheric Aerosol ◽  
Research Community ◽  
Slippery Slope ◽  
Lock In ◽  
Stratospheric Aerosol Injection

AbstractIn this paper, we seek to ground discussions of the governance of stratospheric aerosol injection research in recent literature about the field including an updated understanding of the technology’s deployment logistics and scale, pattern of effects, and research pathways. Relying upon this literature, we evaluate several common reservations regarding the governance of pre-deployment research and testing including covert deployment, technological lock-in, weaponization, slippery slope, and the blurry line between research and deployment. We conclude that these reservations are no longer supported by literature. However, we do not argue that there is no reason for concern. Instead, we enumerate alternative bases for caution about research into stratospheric aerosol injection which are supported by an up-to-date understanding of the literature. We conclude that in order to establish the correct degree and type of governance for stratospheric aerosol injection research, the research community must focus its attention on these well-grounded reservations. However, while these reservations are supported and warrant further attention, we conclude that none currently justifies restrictive governance of early-stage stratospheric aerosol injection research.

Pros and cons of stratospheric aerosol injection

2020 ◽  
Vol 21 (1) ◽  
pp. 72
Author(s):  
Alberto Boretti
Keyword(s):  
Stratospheric Aerosol ◽  
Pros And Cons ◽  
Stratospheric Aerosol Injection

scholarly journals Greenland Ice Sheet Response to Stratospheric Aerosol Injection Geoengineering

2019 ◽  
Vol 7 (12) ◽  
pp. 1451-1463 ◽  
Author(s):  
John C. Moore ◽  
Chao Yue ◽  
Liyun Zhao ◽  
Xiaoran Guo ◽  
Shingo Watanabe ◽  
...  
Keyword(s):  
Ice Sheet ◽  
Greenland Ice Sheet ◽  
Stratospheric Aerosol ◽  
Stratospheric Aerosol Injection

Emerging risk governance for stratospheric aerosol injection as a climate management technology

2019 ◽  
Vol 39 (4) ◽  
pp. 371-382 ◽  
Author(s):  
Khara D. Grieger ◽  
Tyler Felgenhauer ◽  
Ortwin Renn ◽  
Jonathan Wiener ◽  
Mark Borsuk
Keyword(s):  
Stratospheric Aerosol ◽  
Risk Governance ◽  
Management Technology ◽  
Emerging Risk ◽  
Climate Management ◽  
Stratospheric Aerosol Injection

scholarly journals An Update on Engineering Issues Concerning Stratospheric Aerosol Injection for Geoengineering

2020 ◽  
Author(s):  
Andrew Lockley ◽  
Douglas MacMartin ◽  
Hugh Hunt
Keyword(s):  
Stratospheric Aerosol ◽  
Stratospheric Aerosol Injection

scholarly journals Toward practical stratospheric aerosol albedo modification: Solar-powered lofting

2021 ◽  
Vol 7 (20) ◽  
pp. eabe3416
Author(s):  
Ru-Shan Gao ◽  
Karen H. Rosenlof ◽  
Bernd Kärcher ◽  
Simone Tilmes ◽  
Owen B. Toon ◽  
...  
Keyword(s):  
Global Warming ◽  
Solar Radiation ◽  
Energy Efficient ◽  
Stratospheric Aerosol ◽  
Delivery Method ◽  
Model Simulations ◽  
Heated Air ◽  
Black Carbon Aerosol ◽  
Solar Powered ◽  
Stratospheric Aerosol Injection

Many climate intervention (CI) methods have been proposed to offset greenhouse gas–induced global warming, but the practicalities regarding implementation have not received sufficient attention. Stratospheric aerosol injection (SAI) involves introducing large amounts of CI material well within the stratosphere to enhance the aerosol loading, thereby increasing reflection of solar radiation. We explore a delivery method termed solar-powered lofting (SPL) that uses solar energy to loft CI material injected at lower altitudes accessible by conventional aircraft. Particles that absorb solar radiation are dispersed with the CI material and heat the surrounding air. The heated air rises, carrying the CI material to the stratosphere. Global model simulations show that black carbon aerosol (10 microgram per cubic meter) is sufficient to quickly loft CI material well into the stratosphere. SPL could make SAI viable at present, is also more energy efficient, and disperses CI material faster than direct stratospheric injection.

scholarly journals Effects of opinion statements on laypeople's acceptance of a climate engineering technology. Comparing the source credibility of researchers, politicians and a citizens' jury

2021 ◽  
Vol 20 (01) ◽  
pp. A03
Author(s):  
Geraldine Klaus ◽  
Lisa Oswald ◽  
Andreas Ernst ◽  
Christine Merk
Keyword(s):  
Online Survey ◽  
Source Credibility ◽  
Stratospheric Aerosol ◽  
Message Content ◽  
Climate Engineering ◽  
Engineering Technology ◽  
Low Levels ◽  
The Difference ◽  
Positive Effect ◽  
Stratospheric Aerosol Injection

To examine the influence of different actors' fictitious statements about research and deployment of stratospheric aerosol injection (SAI), we conducted an online survey in Germany. Participants assess researchers and a citizens' jury to be more credible than politicians. Credibility has a strong positive effect on SAI acceptance in both pro-SAI and contra-SAI conditions. Reading the statement against SAI-deployment led to significantly lower acceptance scores compared to reading the pro-statement. However, the difference between messages was unexpectedly small, indicating that the message content was not fully adopted while underlying traits and attitudes mainly shaped acceptance even despite, or because of, low levels of knowledge.

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