<p>Why do people reject the fact that HIV causes AIDS? Why do some parents withhold potentially life-saving MMR vaccinations for their children because YouTube videos accuse scientists of being corrupt? Why would a U.S. Senator write a book entitled <i>The Greatest Hoax: How the Global Warming Conspiracy Threatens Your Future</i>, when scientists are 95% certain that climate change is human induced and when only a handful out of 14000 relevant peer-reviewed articles oppose that consensus?</p> <p>There is strong evidence that attitudes towards scientific findings are determined by variables such as people’s worldview that have little to do with scientific evidence. For example, findings that entail regulatory implications for industry—such ...