The people spreading fear about environmental collapse and claiming to be terrified of it, are displaying behaviors that contradict their claims. The people saying the ocean is rising and going to swallow communities while buying mansions on the coast and flying around in private jets, are either displaying extreme cognitive dissonance or aren't really that concerned with the environment collapsing. If it were one or two individuals displaying this behavior I'd blame cognitive dissonance, but it's pretty much every high-profile politician / celebrity.