In a comprehensive study of all public multiple shooting incidents in America between 1977 and 1999, economists John Lott and Bill Landes found that the only public policy that reduced both the incidence and casualties of such shootings were concealed-carry laws. Not only are there 60 percent fewer gun massacres after states adopt concealed-carry laws, but the death and injury rate of such rampages are reduced by 80 percent.
A 1990 study by the (liberal) Progressive Policy Institute showed that, after controlling for single motherhood, the difference in black and white crime rates disappeared.
The key to the U.N.'s global warming study was man's use of aerosol spray. You have to know the French were involved in a study concluding that Arrid Extra Dry is destroying the Earth. In a world in which everyone smelled, the French would be at no disadvantage. Aerosol spray. How convenient.
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