Quoted from a recent Rasmussen Report on a survey among "likely US voters":
The latest Rasmussen Reports national telephone survey finds that 60% of Likely U.S. Voters think it’s at least somewhat likely that the level of activity on the sun ... has an impact on the long-term heating and cooling of the earth’s atmosphere. Just 22% feel that it’s unlikely solar activity influences the atmosphere’s long-term temperature.
These findings include 29% who say it’s Very Likely that solar activity has a long-term impact impacts and only six percent (6%) who believe it’s Not At All Likely. Seventeen percent (17%) are not sure.
Still, 44% of voters thinks human activity has a bigger impact on the long-term heating and cooling of the Earth’s atmosphere than solar activity does. Thirty-seven percent (37%) disagree and believe solar activity has a greater impact. Eighteen percent (18%) are not sure.
I was surprised to read that there seem to be just two positions - it is either the sun or GHG; no space for other causes, including internal variability. I had believed that the "skeptics" in the US were only able to persuade large parts of the public that the GHG-explanation of the warming is false or a "hoax", but it seems that they have achieved more, namely that many accept "the sun" as a better explanation.