The Brookings Institution has released a short report on a recent US survey on geoengineering (and adaptation). Here's the link:
Their findings appear less friendly toward geoengineering (e.g., 69% agree it will do "more harm than good," 17% disagree, 14% unsure) than those published last year by Mercer, Keith, and Sharp (
http://iopscience.iop.org/1748-9326/6/4/044006). But the Brookings questions are more predictive in nature and a lot more vague, and don't provide respondents with any context or even description of geoengineering--it speaks of "adding materials to the atmosphere." I think Mercer/Keith/Sharp gives a better indication of current attitudes toward geoengineering, both concern about deployment and support for research.