Story perspectives
NASA Study Reveals Alaskan Island's Glacier Separation
10/17/2025
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Story summary
- A National Aeronautics and Space Administration (NASA) study documents the separation of an island from a glacier in southern Alaska between mid-July and early August 2025.
- Satellite images from 1984 onward show Alsek Lake expanding from 45 to over 75 square kilometers in four decades.
- Melting weakens glaciers and raises calving and landslide risks.
- Arctic warming is about four times faster than the global average.
