Up Next
Back to Show
PBS News Hour
How western wildfires spread harmful particles across U.S.
Raging wildfires are burning across parts of the western U.S. and Canada, pushing thousands of people to flee their homes and forcing Canada to call up the military to help. In addition to the physical devastation the flames are causing, researchers are getting a clearer picture of just how dangerous all that toxic smoke is to human health. William Brangham reports.
Support Provided By
26:45
December 21, 2025 - PBS News Weekend full episode
26:45
December 20, 2025 - PBS News Weekend full episode
57:46
December 19, 2025 - PBS News Hour full episode
57:46
December 18, 2025 - PBS News Hour full episode
57:46
December 17, 2025 - PBS News Hour full episode
57:46
December 16, 2025 - PBS News Hour full episode
57:46
December 15, 2025 - PBS News Hour full episode
26:45
December 14, 2025 - PBS News Weekend full episode
26:45
December 13, 2025 - PBS News Weekend full episode
57:46
December 12, 2025 - PBS News Hour full episode
57:46
December 11, 2025 - PBS News Hour full episode
57:46
December 10, 2025 - PBS News Hour full episode