US EditionArctic Sees Unprecedented Heat as Climate Impacts Cascade
NOAA's Arctic Report Card reveals 2025 as the warmest year since 1900 with record low sea ice and highest precipitation amid declining science funding and policy support.
- On Tuesday, the National Oceanic and Atmospheric Administration released its Arctic Report Card documenting this year as the warmest and wettest in recorded history, with the lowest sea-ice extent and warmest autumn.
- Research shows Atlantification, with warm Atlantic water intrusion and the halocline losing roughly 30 per cent of its stability, contributing to sea ice decline this year.
- Field observations show melting permafrost has turned streams orange across more than 200 Arctic Alaska watersheds, releasing iron and metals that may harm fish, while the Greenland Ice Sheet lost 129 billion tons of ice this year.
- Earlier this year the U.S. administration cut hundreds of staff, including NOAA workers, while proposed budget cuts and satellites scheduled for decommissioning in 2026 threaten Arctic Observing Network capacity.
- Despite international talks last month, COP30 ended without a fossil-fuel phase-out and less than 15 per cent of needed cuts, while Nunavut territory's strategy due next year aims for full Inuit Nunangat coverage.
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The year analysed, between October 2024 and September 2025, includes the warmest fall, the second warmest winter and the third warmest summer in the Arctic since 1900.
Ecosystem shifts, glacial flooding and ‘rusting rivers’ among Alaska impacts in Arctic report
The sun at midnight on July 9, 2021, reflects on the Chukchi Sea and slabs of sea ice near the coastline of Utgiagvik, the nation's northernmost community. Cold-adapted Arctic marine species are being pushed out of the Chukchi Sea and the Northern Bering Sea by more southern species, according to the 2025 Arctic Report Card. (Photo by Lisa Hupp/U.S. Fish and Wildlife Service)The National Oceanic and Atmospheric Administration issued its annual A…
The Arctic has suffered the warmest year in history, according to today's report by the US National Oceanic and Atmospheric Administration (NOAA), which shows an alarming picture of that area, which is particularly sensitive to the effects of climate change.
Between October 2024 and September 2025, temperatures were 1.60°C higher than the recorded average between 1991 and 2020
Between October 2024 and September 2025 temperatures were 1.6°C higher than the 1991-2020 average.
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Between October 2024 and September 2025 temperatures were 1.60 °C higher than the 1991-2020 average.
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