Far from being an optical illusion or a trick of the light, blue ice, with its deep and almost hypnotic hue, results from ...

World Glacier Day: Trekking the Blue Ice of Perito Moreno in Argentina EL CALAFATE, Argentina (AP) — A creak, a thunderous roar, and then the plunge: Argentina’s Perito Moreno Glacier calves ...

especially where the glaciers are not covered in snow and the bare ice is exposed, they sometimes have dark patches. These are microscopic algae ... The melting ice from glaciers worldwide is ...

Many also embark on guided treks, donning crampons and helmets to explore the glacier’s rolling terrain and peer into centuries-old, deep blue crevasses. Marcia Fortuna, a 46-year-old from Santa ...