US Department of the Interior on X: "Why is this glacier ice at @GlacierBayNPS in #Alaska blue? Glacier ice is blue because the red part of white light is absorbed by ice.
Where to See Glaciers Up Close, From Norway to Patagonia | Condé Nast Traveler
Blue iceberg - Wikipedia
Not all icebergs are white: Here's what makes them blue, green or striped - ABC News