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Change in Permafrost Temperatures in Alaska, 1978-2023

Published by U.S. Environmental Protection Agency, Office of Air and Radiation | U.S. Environmental Protection Agency | Metadata Last Checked: January 27, 2026 | Last Modified: 2024-12-20T00:00:00.000+00:00
This map shows the change in permafrost temperature per decade for long-term borehole sites in Alaska. As the circles get larger, the rate of warming per decade increases. The blue circle represents a cooling trend. For more information: https://www.epa.gov/climatechange/science/indicators.

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