While exploring the anti-vaccine mindset, Orac assembles this group under one umbrella:
One of my interests in skepticism and critical thinking has been the similarity in the fallacious arguments, approach to data, and general behavior of those who are--to put it generously--not so skeptical or scientific in their approach to life. I'm talking about believers in the paranormal, quacks, anti-vaccine activists, conspiracy theory mavens, Holocaust deniers, creationists, anthropogenic global warming denialists, and cranks of all stripes.
A commenter calls foul:
I think your first paragraph has something of the strawman construct about it and you could find many examples to question it. To take AGW as an example, this is a concept that has been questioned by none other than James Randi, hardly known for his crank views. http://www.randi.org/site/index.php/swift-blog/805-agw-revisited.html Whereas one of the great proponents of AGW is that woomaster general Prince Charles.