File name: CLG_Slide 29_Wildfire Smoke_EP 4 Image-4-3.jpg Original Resolution: 3556 × 4736 File Size: 6656 KB (MIME Type: image/jpeg) Date Published: September 19, 2024 Download file View image caption A firefighter goes to work in a smoke-filled environment at the Pioneer Fire in Washington State. Wildfires have increased in frequency and intensity due to human activity. Credit: U.S. Forest Service