Skeptic's Corner: Spinning the truth away

[Quinnipiac University National Poll] Among voters who believe in global warming, 57 percent believe it is caused by human activity.

So 59 % of Americans believe it is getting warmer but of those 59% only 57% believe it is caused by man. So in fact a majority of Americans do not believe in man made global warming though a majority do believe it is getting warmer. If my math is correct what the poll actually shows is that only 33.6% of American believe in man made global warming.

Nice little trick there huh?