PERITO MORENO GLACIER, Argentina (Reuters) -The deep cracking sound bursting from within the ice signals the dramatic fall about to happen. Seconds later, a block of ice some 70 meters (230 ft) tall – the size of a 20-story building – collapses from the face of the Perito Moreno glacier into the aquamarine water below. Read full story
Huge ice falls at Argentina's Perito Moreno glacier stir awe and concern
