Climate Signals summary: Human-caused climate change is fueling wildfires, causing them to grow faster and burn more ferociously than before, even at night.
Climate change is affecting wildfires and experts say those effects are already being seen.
The Tunnel Fire northeast of Flagstaff exploded in size Tuesday, driven by a Red Flag day with extremely high winds.
Typically, fire officials say, those winds tend to die down overnight as temperatures drop and humidity levels increase. But Tuesday night, that didn't happen.
Fire officials said the winds kept up all night, similar to other fires in recent years.
"They were not getting any recovery at night," University of Arizona climatologist Mike Crimmins said. "So the fires were burning intensely through the dead of night."
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