According to the report - Climate Change in the American Mind in 2008 71% of people asked thought global warming was a real event, but this year only 57% of Americans surveyed said they believed in global warming and only 35% of those people were "very sure" that global warming is a reality. When asked how worried they were about global warming only 12% of the survey participants said they were "very worried" and 38% were "somewhat worried."
There's a lot more to see in the survey but mainly I was surprised that global warming concerns have fallen so sharply over the last two years. The report had a very small survey sample in my opinion which is something to consider but still it's surprising that so few people are thinking about global warming - only 5% said that global warming was "extremely important" to them personally and only 15% said it was "very important" to them personally. Even with a small survey, I'd have expected more concerned folks.