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NOAA’s Arctic Report Card 2025: Arctic Surface Air Temperatures Hit Highest Since 1900
National Oceanic and Atmospheric Administration releases NOAA’s Arctic Report Card 2025, reporting Arctic surface air temperatures as the highest on record during October 2024–September 2025 since 1900. The report flags rapid Arctic warming and notes related environmental changes and geopolitical implications such as new shipping route viability and the role of the Arctic Council.
NOAA’s Arctic Report Card 2025:
| Dimension | Key Details |
|---|---|
| Releasing authority | National Oceanic and Atmospheric Administration (NOAA). |
| Core finding on warming | Reporting that the Arctic region is warming far faster than the rest of the planet. |
| Arctic surface air temperatures | Observation that Arctic surface air temperature is the highest on record during October 2024–September 2025 since 1900. |
| Arctic temperature trend | Last 10 years are the 10 warmest on record in the Arctic. |
| Atlantification definition | Defined as an influx of anomalous water properties and biota from lower latitudes to the central Arctic Ocean. |
| Effects | Weakens Arctic Ocean stratification, enhancing heat transfer, melting sea ice, and threatening ocean circulation patterns. |
| Rusting of Rivers | In Arctic Alaska, surface waters have changed from clear to orange in over 200 watersheds. |
| Cause and impacts | Caused by iron release from thawing permafrost soils; impacts fishes and water supplies to local communities. |
| Greening of the Arctic | First detected in the late 1990s; defined as a long-term increase in the productivity and abundance of tundra vegetation. |
| Impacts | Provides for impacts to Arctic landscapes, wildlife habitats, biodiversity, permafrost conditions, and the livelihood of Arctic people. |
| New shipping routes | Northern Sea Route (NSR), along Russia’s Arctic coast from the Kara Sea to the Bering Strait |
| Arctic Council | Governed as a leading intergovernmental forum to enhance cooperation and protection for indigenous communities. |
| Establishment and members | Established in 1996; comprises eight member states: Canada, Denmark, Finland, Iceland, Norway, Russia, Sweden, USA. |
| India | India’s Research Station Himadri and Arctic Policy as factors that could enhance engagement and research in the region. |