WASHINGTON (August 1, 2013)—A major new study finds that as the world gets warmer, people are increasingly prone to get hot under the collar.
Scientists found that such aggressive acts as violent crimes and wars become more likely with each added degree of temperature.
The research analyzed 60 studies of such things as the historic collapses of empires, recent wars, violent crime rates in the United States and even cases in which pitchers deliberately threw at batters and found a common thread--extreme weather whether hot or dry means more violence.
An author of the study, economist Solomon Hsiang of the University of California, Berkeley, said that when the weather gets bad people tend to be more willing to hurt others.
The study was published online Thursday by the journal Science.