Found this on the Grist site today:
The problem? Far too many people not only don't weigh ideas to see if they make sense, but instead they actively seek out ideas, no matter how crazy, just because they like the concept.
In short, the fact that such a chart is necessary at all suggests that it may not be useful. Anyone who had the common sense to figure out that the globe is warming, and the scientists who say so are mostly honest as the day is long (and warm), won't accept the judgment of Grist, either.