A lot of them complain because they say the word denial puts them in the same bin as holocaust deniers. That's too bad. But the thing is, they do have something in common: a denial of evidence and of scientific consensus.
Phil PlaitIt's amazing to me that not only can we put a probe around Saturn and get images of its moons, but our math and physics are so freaking accurate we can say, "Hey, you know what? On this date at this time if we turn Cassini that way we'll see a moon over 2 million kilometers away pass in front of another one nearly 3 million kilometers away." Every morning, I have a 50/50 chance of finding my keys. That kinda puts things in perspective.
Phil Plait