Heat Waves Making Wildfires Worse in the Western United States
Key points:
• Researchers found that heat waves are a critical enabler and driver of wildfire-burned areas across the western U.S.
• The findings suggest that heat waves contribute not only to increased flammability, but to longer burn periods and increased lightning.
• Burned area in forests during the summer more than doubled between 2001 and 2024. Most of this recent increase - 64 percent - occurred during heat waves.



