Alongside the U.N. Framework Convention on Climate Change, the media and presidential candidates have been making a lot of small talk about weather. Though there’s nothing new about the issue “climate change,” and the preceding term “global warming,” not everybody is on board. Republican candidates including Donald Trump, Chris Christie, and Ben Carson continue to deny climate change, even as the evidence mounts. Often, these candidates state they don’t place much stock in “science.”

An article on Huffington Post discusses this dynamic with help from environmental sociologists Riley Dunlap from OSU and Aaron McCright of MSU. They describe how, particularly among conservative voter bases, people are more likely to seek out information that they agree with while, ignoring what challenges their preexisting ideas. In addition, high-profile skeptics such as political figures can generate an “echo chamber.” In essence, people hear their beliefs reinforced within their social networks; groups can normalize and strengthen particular beliefs or ideologies by simply listening to each other instead of finding new information. As the article describes, even in the face of increasing scientific evidence of climate change, some will remain cold to the idea.