This past week I ran a poll on global warming. The choices ran from yes it is happening and man is to blame to it's a fraud.
9% of the respondents voted that it was happening and it was man's fault. Another 9% thought it was happening but it wasn't caused by mankind. Just 4% thought it had stopped around the year 2000. The rest or 78% saw global warming as a fraud.
Personally I see some fraud associated with the believers/advocates, but I wouldn't call global warming as a fraud. But the planet tends to heat up and cool down on its own on a regular basis. My belief is that we were in one of those periods when the global warming people started telling us about it.