While there has been some fear mongering from the advocates of change the general rule is that the fear mongering has come from the climate change deniers with their constant talk about dictatorial world governments and claims that the environmentalists want to sent us all “back to the stone age”. Bad science and fear of change has indeed a monetary reason to exist because doubt is their product.
Case in point, I have seen the possible increase in hurricanes to be used mainly in popular media, but the science points actually to currently see less hurricanes; however, they are likely to be more more intense when they will come. But popular media is doing a number also on hypercanes, studies point to them to be possible, but unlikely. Now that unlikely point is then ignored and popular media then does not help by overstating the danger and then climate change deniers jump to claim that the scientists are the fear mongers. There is money indeed being made out of a falsehood by the preachers of fear but it is mostly from the ones that misunderstand or mislead others in what the scientists are actually reporting.
In the case of the hockey stick graphs the fear mongering directed against science by professional ignorants out there is more clear.