Denier!
The world is going to freeze;
The world is going to overheat;
The world is going to freeze due to overheating;
The population bomb will kill hundreds of millions;
Alar is killing us from apples;
There is no inherent difference between males and females;
The FDA food pyramid was correct;
Vitamin supplements are bad;
Vaccines are bad;
The Fedgov exists for your benefit;
McCarthy was a "witch hunter";
Communism exists for the people;
Eggs will kill us;
Red meat will kill us;
Jogging is the solution to early death;
Soy protein is best;
Alcohol is bad; alcohol is good in small quantities; alcohol is bad;
All fats are bad and will kill you;
Whole wheats are good, but gluten is now bad;
Guns kill people;
Inner-city blacks and hispanics act up because of little opportunities;
The Pursuit of Happiness means equal outcome;
The General Welfare clause means equal outcome;
Most whites are racist;
Whites were the cause of slavery;
Single black women with children is not the fault of the missing fathers, but white society oppression;
Native Americans are "noble" peaceful peoples;
Columbus introduced disease to the American Indians;
Logging will destroy our forests;
Fossil fuels are limited;
Alternitive energy is viable;
No cures for countless ailments/disease;
Every thing Obambi claims.
Feel free to add to the list. Sure I missed some, especially from the 60's, 70's and 80's.