Real and Exaggerated
One of the problems is how some global warming scientists have made mistakes but have been slow to admit them for fear of discrediting the whole enterprise.
And then there is the alarmist community headed by Al Gore.
As Stephens points out (and I have pointed out in the past) the man to listen to on the subject is Danish scientist Bjorn Lomborg, author of The Skeptical Environmentalist and now, Cool It. Lomborg says GW is real and a real problem but one of many facing the human race that needs to be prioritized.
Let's keep our heads people.