Colorado's wildfires have grown to more than 75,000 acres in Rio Blanco County. See the latest on the Lee and Elk fires and a map of all the fires.

But a growing body of research is reinforcing the knowledge that wildfire smoke is much more than an inconvenience — in fact, it’s actually killing far more people than the flames themselves. New research on the fallout of the Palisades and Eaton fires that ravaged Los Angeles in January bears this out.