The PNW natural disaster you probably aren’t thinking about

There are plenty of natural disasters to worry about in the Pacific Northwest, like earthquakes, wildfires, and volcanic eruptions. But you may have heard less about lahars -- fast-moving mudflows that emerge from volcanoes. Seattle-based narrative journalist Wudan Yan has written about lahars for Popular Mechanics, and how scientists are sounding the alarm about the threats they pose to communities near Mount Rainier.