Why Arctic fires are releasing more carbon than ever

Photo: National Park Service

Why Arctic fires are releasing more carbon than ever

Smoke from hundreds of wildfires darkened skies over the Alaskan Interior this summer, with the state experiencing its fastest start to the fire season on record amid hot and dry conditions.

Tens of thousands of lightning strikes ignited the majority of active fires, according to the Bureau of Land Management Alaska Fire Service. By late August, more than 3 million acres had burned across the state—roughly triple what’s seen in an average year, but no longer unusual in a warming world.

With climate change raising Arctic temperatures faster than the global average, wildfires are shifting poleward where the flames blaze through boreal forest and tundra and release vast amounts of greenhouse gases from the carbon-rich organic soil.

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