Scientists tell WRAL that climate change is creating more extreme and more frequent heat waves in our state and across the country. The Raleigh-Durham area has on average forty more high temperature days per year that pose risk to people than we did in 1970. By 2050, heat waves in our state are expected to quadruple. The risk is even higher for urban areas where dense development and pavement absorb the heat. In this episode, WRAL’s climate change reporter Liz McLaughlin explains just how hot it could get.