Dealing with the false prophets of Climate Change - a lesson from history

A small preview piece in The Telegraph's TV listing caught my eye today. It concerns a programme called "Man on Earth" showing on Monday at 9pm. The bit of the preview that I thought interesting was this:

"When the rains failed the Mayan Indians of Caracol(now part of Belize) in about 400AD they offered human sacrifices to their gods and then, when that didn't work, they killed their ruling elite by putting out their eyes and tongues and flaying them."

I think it importnat to learn from history, don't you?