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Researchers Map 4 Million Arctic Lakes as Permafrost Thaws

8/27/2026

45 9 Full Breakdown

Summary

Story summary

Scientists led by Ingmar Nitze map and monitor over 4 million Arctic lakes in United States to track permafrost thaw.
Maps label permafrost zones risky for building and less-ice areas safer.
Seward and Baldwin peninsulas in northwestern Alaska are hotspots for lake drainage.
In summer 2018, 200 of ~4,600 lakes lost over a quarter of their area.
In June-July 2026, researchers observed about 30 additional lakes draining in the same region.

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Story summary

Scientists led by Ingmar Nitze map and monitor over 4 million Arctic lakes in United States to track permafrost thaw.
Maps label permafrost zones risky for building and less-ice areas safer.
Seward and Baldwin peninsulas in northwestern Alaska are hotspots for lake drainage.
In summer 2018, 200 of ~4,600 lakes lost over a quarter of their area.
In June-July 2026, researchers observed about 30 additional lakes draining in the same region.