STORY: In a video that went viral Monday, a glacier that sits atop a mountain about 656 feet (200 meters) high rumbled and broke off at Queulat National Park, located more than 746 miles (1,200 kilometers) south of Chile's capital. Detachments between masses of ice are normal, says University of Santiago climate scientist Raul Cordero, but he noted that the frequency of these events is troubling. According to Cordero, there was a heat wave with "very abnormal" temperatures in that area o...