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The Guardian - US
The Guardian - US
World
Dharna Noor and agencies

Arctic tundra is now emitting more carbon than it absorbs, US agency says

a bird flies near an iceberg
The Ilulissat Icefjord in Greenland in 2021. Photograph: Mario Tama/Getty Images

The Arctic tundra is undergoing a dramatic transformation, driven by frequent wildfires that are turning it into a net source of carbon dioxide emissions after millennia of acting as a carbon sink, the US National Oceanic and Atmospheric Administration (Noaa) said on Tuesday.

This drastic shift is detailed in Noaa’s 2024 Arctic Report Card, which revealed that annual surface air temperatures in the Arctic this year were the second-warmest on record since 1900.

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