We need someone with qualifications <a href="http://blogs.eciad.ca/gr/news/">best rx promotions</a>  When Hsiang [the lead author of the study] and colleagues put together evidence from 190 researchers, they determined that intergroup conflict increases 14% and interpersonal violence increases 4% for each standard deviation in climate variables. For instance, in terms of temperature, one standard deviation is about halfway between what you would expect for an average year and a really hot year.