Photographs of glaciers taken from space: beautiful, artistic, and kind of scary. From Wired: “Glaciers also provide an environmental record by trapping air bubbles in ice that reveal atmospheric conditions in the past.”
This image taken in 2005 of Bear Glacier highlights the beautiful color of many glacial lakes. The hue is caused by the silt that is finely ground away from the valley walls by the glacier and deposited in the lake. The particles in this “glacial flour” can be very reflective, turning the water into a distinctive greenish blue. The lake, eight miles up from the terminus of the glacier, was held in place by the glacier, but in 2008 it broke through and drained into Resurrection Bay in Kenai Fjords National Park.
Read more about the destruction and destructive power of glaciers.