How to Talk to a Climate Sceptic: "...a handy one-stop shop for all the material you should need to rebut the more common anti-global warming science arguments constantly echoed across the internet."
""Anti-Gravity Hills" (also known as "Gravity Hills", "Spook Hills", or "Magnetic Hills") are natural places where cars put into neutral are seen to move uphill on a slightly sloping road, apparently defying the law of gravity. Typically, the "spooky" stretch of road is rather short (50-90 m), only a few meters wide, and surrounded by a natural hill landscape, without nearby buildings. Such places are found in several countries all around the world, and have been tourist attractions for decades. They should not be confused with the "Mystery Spots" [previously] found in amusement parks. These are generally tilted cabins, purposely built as such; a person walking inside feels disoriented, getting a very strong impression of standing at an angle in a perfectly normal room." CSICOP and Discovery News explain the phenomenon, and here's the paper on which the CSICOP article was based (PDF).
The Ganzfeld Experiment. Is it evidence for the existence of psi abilities? Is it sloppy experimental practice? Philosopher and game designer Chris Bateman suggests that it might be most significant for what it reveals about the biases of the scientific community.