Stratum
Strata & Time · 00:04 · 2026

Erosion on the Beaufort Sea coast

Permafrost bluffs on Alaska's north coast give way to the sea a few metres a year. The shoreline steps inland frame by frame.

What to look for

Fix your eye on one stretch of shore and watch it step inland. There is no single dramatic moment; the loss adds up from year to year.

Part of
Collection
Strata & Time
Series
Forty years in four seconds
Running time
00:04
Year
2026
Source
NASA SVS / Landsat, SVS 15023
Licence
Public domain (United States government work)

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