- Respondents were skeptical that "scientists would be able to find ways to alter the climate" (31% agree, 60% disagree), but more confident in the efficacy of specific "atmospheric engineering methods" (38% agree, 45% disagree). This contrast is attributable to different ways of framing climate intervention.
- In response to the statement "Attempts to reduce global warming by adding materials to the atmosphere will cause more harm than good for the environment," 69% agreed (41% strongly, 28% somewhat) while only 17% disagreed (6% strongly, 11% somewhat).
- Across the board, climate change deniers were significantly more negative toward geoengineering than those who accept the science of climate change.
Based on these results, the researchers conclude that "Americans ... maintain broad and deep concerns regarding geoengineering options for combating climate change" (p. 6).
These results contrast with previous opinion data released last fall (see Public Opinion Supports SRM Research, 10/25/2011). Below is a summary of results from US respondents based on data provided to me by the authors of this earlier survey.