Arctic Fires Are Unleashing Ancient Carbon, Scientists Race to Stop It

In 2021, a wildfire near Fairbanks, Alaska, burned through a boreal forest and thawed the permafrost beneath—a frozen layer of soil that holds twice as much carbon as the entire atmosphere. As climate change makes Arctic fires more frequent and severe, they're accelerating permafrost thaw, releasing greenhouse gases that cause even more warming. This creates a dangerous feedback loop: more warming leads to more fires, which leads to more thawing and more emissions.

The problem is huge. In 2023, Canadian wildfires released more carbon than the country's entire fossil fuel emissions. Many of these fires burn in remote areas where they're left to burn unless they threaten people. But if this continues, the Arctic's boreal forests and permafrost could switch from storing carbon to releasing it, making climate change much worse.

Now, international teams are scrambling to find solutions. Researchers at Woodwell Climate Research Center, the University of Victoria, and the Alaska Venture Fund have launched a multimillion-dollar initiative called North Fire to study preventive measures like controlled burns and rapid fire detection. They're even considering sending firefighters to protect carbon stores, not just homes. "We need to figure out a better way to live with wildfire," says scientist Brendan Rogers.

The catch: wildfire is a natural part of healthy forests, and suppressing fires across vast remote areas would be extremely costly. It's also unclear how much difference these efforts would make. The fact that scientists are considering such extreme measures shows how serious the climate crisis has become.