SCIENCE · VERIFIED DEVELOPMENT
AI‑Driven Maps Track Rapid Arctic Permafrost Thaw via Disappearing Lakes
WHY IT MATTERS
Near‑real‑time permafrost maps give Arctic communities actionable data to avoid building on unstable ground, reducing costly infrastructure damage and improving safety as climate change accelerates thaw.
What happened
Scientists in Alaska and across the Arctic are using satellite images and artificial intelligence to monitor permafrost thaw in near‑real time. An interactive website now tracks the appearance and disappearance of thermokarst ponds—depressions that form when ice‑rich ground melts.
The Permafrost Discovery Gateway team has mapped over 4 million lakes and 70 million trough ponds, and in June‑July 2026 it recorded the sudden drainage of about 30 lakes on the Seward and Baldwin peninsulas, after a cold winter that still saw widespread thaw.
The maps flag areas underlain by ice‑rich permafrost, helping planners avoid unsafe building sites and anticipate infrastructure damage from ground collapse.
PRIMARY SOURCES
Disappearing lakes and AI are helping scientists map Arctic permafrost thaw in near-real time
The Conversation US · Anna Liljedahl, Affiliated Professor in Arctic Hydrology, University of Alaska Fairbanks · CC BY-ND; link/attribution intake only—no edited republication