Whether it's products you use around your home or the safety of our roads when the weather gets icy, researchers at Virginia Tech and the University of Maryland are finding the human demand for salt comes at a cost to the environment. Chief meteorologist Brent Watts talks with Stanley Grant and Megan Rippy from Virginia Tech's Occoquan Watershed Monitoring Laboratory about what happens when all that salt hits our streams and what is being done to mitigate future threats.