Al Roker talks to climate scientist Alexander Gershunov about the conditions that made the L.A. wildfires so devastating.

We continue with our remembrances of the 29 people who died in the fires in Southern California. The Los Angeles County ...

Photograph by Mark Thiessen, National Geographic Before and after a home burned down in the Smiley Park neighborhood of Running Springs, California during the 2007 Slide Fire. Because of the ...