Higher temperatures and rainfall that weaken ice walls caused part of a hanging glacier to break off at a national park in Chile's Patagonia region in an event captured on video by tourists.
In a video that went viral Monday, a glacier that sits atop a mountain about 200 meters (656 feet) high rumbled and broke off at Queulat National Park, located more than 1,200 kilometers(746 miles) south of Chile's capital.
