Over the past few months, polls show that fewer Americans say they believe humans are making the planet dangerously warmer, despite a raft of scientific reports that say otherwise.

This puzzles many climate scientists — but not some social scientists, whose research suggests that facts may not be as important as one’s beliefs.

Take, for example, a recent debate about climate change on West Virginia public radio.
“It’s a hoax,” said coal company CEO Don Blankenship, “because clearly anyone that says that they know what the temperature of the Earth is going to be in 2020 or 2030 needs to be put in an asylum because they don’t.”

On the other side of the debate was environmentalist Robert Kennedy, Jr.