Glaciers are made of densely packed snow that's fallen in the same place over years and years. Each fresh fall of snow adds to the weight, crushing the layers of snow below, turning it into ice.
We might be able to tell when a volcano is about to erupt with the help of another natural wonder: glaciers. Glaciers that are within 3 miles of a volcano appear to move nearly 50 percent faster ...
The biggest spike in glacier retreats was detected in 2016 ... ice fields and geographical location in the high North Atlantic make it especially sensitive to climate change.