Wise On on Instagram: "When an iceberg calves (breaks from a glacier or ice shelf), fresh fractures can reveal dark blue ice. This basal ice is older, denser, and bubble-poor; pure ice absorbs red light more than blue, so the interior looks deep blue. Layer bands may also appear brown/black (rock dust) or green (marine ice with dissolved organics/iron). Calving is driven by stress, ocean swell, currents, and melt; winds and temperatures then sculpt the berg. Melting of already-floating icebergs

Largest Calving in Over Half a Century

Largest glacier calving ever caught on film | Earth | EarthSky

Massive glacier captured calving in Alaska

Calving causes this glacier collapse.

Glacier calving causes huge wave in Iceland! 😱 | Newsflare

How Ice-Shelf Loss Drives Sea Level Rise