37% of registered U.S. voters believe global warming is a hoax, according to a national survey by Public Policy Polling. Among registered Republicans, the figure is even higher: 58 percent. In the survey, Public Polling Policy asked registered voters about widespread conspiracy theories. Some other results:
21% say a UFO crashed in Roswell, N.M., in 1947 and the U.S. government covered it up.
28% believe a secretive power elite with a globalist agenda is conspiring to eventually rule the world through an authoritarian world government, or New World Order.
28% believe Saddam Hussein was involved in the 9/11 attacks.
7% think the moon landing was faked.
13% think Barack Obama is the Antichrist, including 22% of people who voted for Mitt Romney.
29% believe aliens exist.
14% say the CIA was instrumental in creating the crack cocaine epidemic in America's inner cities in the 1980s.
51% say a larger conspiracy was at work in the JFK assassination; just 25% say Lee Harvey Oswald acted alone.
15% say the government or the media adds mind-controlling technology to TV broadcast signals (the so-called Tinfoil Hat crowd).
5% believe exhaust seen in the sky behind airplanes is actually chemicals sprayed by the government for sinister reasons.
15% think the medical industry and the pharmaceutical industry "invent" new diseases to make money.
11% believe the U.S. government allowed 9/11 to happen.