Its really telling of the greater divide in the republican party. In the past fox used to play up some of the more crazy beliefs from "that" segment of the party. It was useful to them, and didn't really alienate the other half. However they lost control, and its hurting their image. So now I believe the more traditional components of the party are attempting to return to a moderate position.
That in combination with the fact that global warming is real, with a certainty of something like 95%, and is costing the insurance companies (major contributors) big money.