A new study has revealed the alarming extent glaciers have shrunk over the past 40 years in a global warming hotspot -- and the biggest retreat has occurred in recent years.
the water level is temporarily raised when the large glacier blocks the narrow channel formed by Lake Argentino, resulting in regular thunderous ruptures of the glacier tongue into the lake.
New research has tracked the evolution of a glacier lake dammed by a glacier surge using satellite images, to help better understand its life cycle and the hazard it presents to nearby communities.